gatecrasher

Plural: gatecrashers

Noun

• someone who gets in (to a party) without an invitation or without paying
• A person who enters some event without a ticket or invitation, either by stealth or by deception.
• The groom or one of his groomsmen when partaking in the gatecrashing ritual of a traditional Chinese wedding.

Synonyms

crasher, unwelcome guest

Related Words

backseat driver, busybody, buttinsky, crasher, crashing, encroacher, gatecrash, interloper, intruder, kibitzer, marplot, meddler, nosy parker, peeping tom, persona non grata