IT’S PARTY TIME!
(a song/speech/joke/trick that somebody always does to entertain people, especially at parties)
His common party piece was mimicry of politicians and celebrities.
(a person who does not want to take part in an enjoyable activity and spoils the fun for other people)
We had a costume party but Tom refused to dress up. He is such a party pooper.
life and soul of a party
(a person who enjoys a party and has the ability to engage and entertain others at a party and make them have a good time)
Even in his seventies, the retired comedian was the life and soul of parties.
crash a party
(go to a party where you are not invited)
A group of high schoolers crashed our party last night.