It is meant as Personal Thot for a title for one of your friends: Used as a Joke
Boy: Who is Latonya to you?
Girl: Aww, She is my PT- Personal Thot
Pussy. Time. To receive sexual act from a girl.
Yo I was just hanging out with this girl and I got some got PT.
(PussyTime) to receive any sexual act from a girl.
Yo Jon I just got PT from this girl.
an abbreviation of the word part
pt 1 of farting in my brothers room