matplotlib
diff --git a/‎doc/api/api_changes_3.3/behaviour.rst
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+3-5Lines changed: 3 additions & 5 deletions b/‎doc/api/api_changes_3.3/behaviour.rst
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+3-5Lines changed: 3 additions & 5 deletions
diff --git a/‎lib/matplotlib/axes/_base.py
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+5-6Lines changed: 5 additions & 6 deletions b/‎lib/matplotlib/axes/_base.py
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+5-6Lines changed: 5 additions & 6 deletions
diff --git a/‎lib/matplotlib/axis.py
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+13-12Lines changed: 13 additions & 12 deletions b/‎lib/matplotlib/axis.py
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+13-12Lines changed: 13 additions & 12 deletions
@@ -229,11 +229,9 @@ x direction, making the axes smaller in the x-direction doesn't help.  The
 behavior of both has been changed to ignore the width of the title and
 xlabel and the height of the ylabel in the layout logic.
 
-This also means there is a new keyword argument for `.axes.Axes.get_tightbbox`:
-``for_layout_only``, which defaults to *False*, but if *True* returns a
-bounding box using the rules above.  `.axis.Axis.get_tightbbox` gets an
-``ignore_label`` keyword argument, which is *None* by default, but which can
-also be 'x' or 'y'. 
+This also means there is a new keyword argument for `.axes.Axes.get_tightbbox`
+and `.axis.Axis.get_tightbbox`: ``for_layout_only``, which defaults to *False*,
+but if *True* returns a bounding box using the rules above.
 
 :rc:`savefig.facecolor` and :rc:`savefig.edgecolor` now default to "auto"
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
@@ -4143,21 +4143,20 @@ def get_tightbbox(self, renderer, call_axes_locator=True,
             self.apply_aspect()
 
         if self.axison:
-            igl = 'x' if for_layout_only else None
             try:
-                bb_xaxis = self.xaxis.get_tightbbox(renderer, ignore_label=igl)
+                bb_xaxis = self.xaxis.get_tightbbox(
+                    renderer, for_layout_only=for_layout_only)
             except TypeError:
                 # in case downstream library has redefined axis:
                 bb_xaxis = self.xaxis.get_tightbbox(renderer)
             if bb_xaxis:
                 bb.append(bb_xaxis)
-
-            igl = 'y' if for_layout_only else None
             try:
-                bb_yaxis = self.yaxis.get_tightbbox(renderer, ignore_label=igl)
+                bb_yaxis = self.yaxis.get_tightbbox(
+                    renderer, for_layout_only=for_layout_only)
             except TypeError:
                 # in case downstream library has redefined axis:
-                bb_xaxis = self.yaxis.get_tightbbox(renderer)
+                bb_yaxis = self.yaxis.get_tightbbox(renderer)
             if bb_yaxis:
                 bb.append(bb_yaxis)
         self._update_title_position(renderer)
 
@@ -1079,15 +1079,15 @@ def _get_tick_bboxes(self, ticks, renderer):
                 [tick.label2.get_window_extent(renderer)
                  for tick in ticks if tick.label2.get_visible()])
 
-    def get_tightbbox(self, renderer, *, ignore_label=None):
+    def get_tightbbox(self, renderer, *, for_layout_only=False):
         """
         Return a bounding box that encloses the axis. It only accounts
         tick labels, axis label, and offsetText.
 
-        If ``ignore_label`` is 'x', then the width of the label is collapsed
-        to near zero.  If 'y', then the height is collapsed to near zero. This
-        is for tight/constrained_layout to be able to ignore too-long labels
-        when doing their layout.
+        If *for_layout_only* is True, then the width of the label (if this
+        is an x-axis) or the height of the label (if this is a y-axis) is
+        collapsed to near zero.  This allows tight/constrained_layout to ignore
+        too-long labels when doing their layout.
         """
         if not self.get_visible():
             return
@@ -1114,14 +1114,15 @@ def get_tightbbox(self, renderer, *, ignore_label=None):
         if self.label.get_visible():
             bb = self.label.get_window_extent(renderer)
             # for constrained/tight_layout, we want to ignore the label's
-            # width because the adjustments they make can't be improved.
+            # width/height because the adjustments they make can't be improved.
             # this code collapses the relevant direction
-            if ignore_label == 'x' and bb.width > 0:
-                bb.x0 = (bb.x0 + bb.x1) / 2 - 0.5
-                bb.x1 = bb.x0 + 1.0
-            elif ignore_label == 'y' and bb.height > 0:
-                bb.y0 = (bb.y0 + bb.y1) / 2 - 0.5
-                bb.y1 = bb.y0 + 1.0
+            if for_layout_only:
+                if self.axis_name == "x" and bb.width > 0:
+                    bb.x0 = (bb.x0 + bb.x1) / 2 - 0.5
+                    bb.x1 = bb.x0 + 1.0
+                if self.axis_name == "y" and bb.height > 0:
+                    bb.y0 = (bb.y0 + bb.y1) / 2 - 0.5
+                    bb.y1 = bb.y0 + 1.0
             bboxes.append(bb)
         bboxes = [b for b in bboxes
                   if 0 < b.width < np.inf and 0 < b.height < np.inf]