The worst word known in the unofficial English dictionary. Posty has many offensive undertones involving race, gender/sex, and religion. This word isn't something you should just throw around.
The state in which you are living like Post Malone; drinking Bud-Light, smoking cigarettes, not giving a fuck, and not remembering any of it the next day.
Posty, a nickname for Post Malone or his real name Austin Richard Post, is what pretty much all his fans and friends call him. He even refers to himself as Posty because he is Young Stoney and he does what he wants.
Guy: “Yo have you heard of Posty?”
Girl: “Yeah he’s fire!”