Yo I was ready to bust a nut in this girl's vag but next thing I know I'm all up in her ass! I got caught up in her posterior motives...
by Teh butt s3x0rs May 3, 2010
Posterior meaning buttocks, the phrase is derived from the phrase "ulterior motives". The phrase refers to a male being phony twords the opposite sex with the intentions of sexual Intercourse.
Seeing a male explaining any of the following to a female could be seen as having Posterior Motives: "I'm different than the other guys", "I love poetry!", "I think you look great with no makeup" "I think you are so unique" ect ect.
by LilBobbySaget September 6, 2013
The intentions of a impostor from among us. Also called IMposterior motives. Get it, cause their the impo from amongus.
Dark Blue: * does task *
Impostor: DB is sus!! They faked a task, PROVING they have posterior motives.
Impostor: DB is sus!! They faked a task, PROVING they have posterior motives.
by impnessmogus October 10, 2022