Turning up unexpected and unwanted at a party, house or gathering, etc
Having a well cool party till these chavs gatecrashed
by Nessa April 10, 2005
To enter a party uninvited - ''crash the party''
Get Smashed Gate Crash >> Hadouken! Lyric.
meaning to crash a party. arrive unvited. get pissed.
by Jake Y June 18, 2008
To "accidentally" insert your penis into a female companion's anus during vaginal intercourse. Often performed during doggie style
Mike F: What happened to that sidepiece you were seeing?

Ty: We broke up. I totally gatecrashed her the other day and she wasn't having it. She didn't believe it was an accident.
by bizarro_stormy April 11, 2010

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