PYT is an abbreviation for "Pretty Young Thing". This term became well known when Michael Jackson featured a song by that name on his classic album "Thriller". Usually, the term applies to an attractive young woman.
Man, that Karen who works at the ice cream parlor is a major PYT. She is stacked to the max!
Pretty Young Thing, commonly used by guys when referring to an attractive female. Derived from Michael Jackson's song from the 80s, P.Y.T has recently been used in songs such as "D.A.N.C.E" by Justice, and "Bartender" by T-Pain
"Yo, that girl that you've been talking to is such a P.Y.T"