1) when a party hat is placed atop a boob

2) a boob that likes to party
1) Why have you placed a party hat on your boob? Put it on your head, you don't want to have a partyboob.

2) Your boob is so happy! It loves to party.
by leneville12 May 27, 2012
When a woman has her breasts surgically augmented and proceeds to display them in low cut tops, tight tops and without a bra as much as possible for every occasion.
Sue: "Oh no, do you see how low cut that top is? She is leaving nothing to the imagination!"
Jane: "Oh girl! She's got her party boobs out!"
by IreneIsNotMyName October 31, 2014
Boobytrap backwards.
I disarmed that boobytrap. PARTYBOOB!
by TheNiggerMane May 14, 2012
Partyboob: A female breast which tends to posses lower inhibitions than the other breast as it is better looking, similar to how people prefer to be photographed from one side.
"I always flash my left boob at parties because that's my partyboob".
by Johnels July 25, 2012
That girl thats boobs always dance more then her at parties.
Dude! Look at Felicia, she has really huge party boobs!
by party boob November 02, 2014

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