gatecrasher

English Thesaurus

1. someone who gets in (to a party) without an invitation or without paying (noun.person)

hypernym	:	interloper, intruder, trespasser,
definition	:	someone who intrudes on the privacy or property of another without permission (noun.person)

derivation	:	barge in, crash, gate-crash,
definition	:	enter uninvited; informal (verb.motion)

derivation	:	barge in, crash, gate-crash,
definition	:	enter uninvited; informal (verb.motion)