What does "crash" mean in the following text?
"As of the evening I stopped searching the Internet and actually went out to enjoy Berlin, e-books accounted for nearly 20 percent of the sales of American publishers. In Germany, however, e-books accounted for only 1 percent last year. I began asking the multilingual, multi­ethnic artists around me why that was. It was 2 a.m., at Soho House, a private club I’d crashed in the former Hitler­jugend headquarters...The next morning, Alexander Provan and I lugged the books for distribution, gratis."
(From My Berlin Airlift by Joshua Cohen. Link to the essay→ )
Thanks to anyone who helps me.

 

When you "crash" a club or event, you manage to get in without being invited or, in the case of a club, without being a member.

Here is a previous thread on the subject:
To crash a party or Party-crasher?

 

It's verb meaning 4 in our handy dictionary, MissM ~ 'gatecrash', i.e. go to a party [in this case a club] uninvited.

 

Copyright and ewie, thank you very much!