Noun: A woman, typically in her 20's, that proceeds to commit lesbian acts while in a party situation. Inebriation is a common excuse for party lesbian behavior in generally heterosexual women.
Guy 1: Did you see those chicks making out last night?
Guy 2: Yeah! They're totally party lesbians. Didn't they leave together?
Guy 1: Dude... do you think they scissored?
Guy 2: Yeah! They're totally party lesbians. Didn't they leave together?
Guy 1: Dude... do you think they scissored?
by McSantos May 01, 2009
Person 1: Oh did you see Nathalie her tumblr.
Person 2: Yeah it was full of Yuri.
Person 1: She is such a third-party lesbian.
Person 2: Yeah it was full of Yuri.
Person 1: She is such a third-party lesbian.
by MasterMando January 05, 2020