What is top stuff?

Sexual things like kissing,getting down on breasts and giving hickeys

-"Yo i heard there was an orgy list night,did you go?"
-"Yea but i didn't fuck "
-"Really"
-"Yea top stuff only"

Top stuff - what is it?

Only doing sexual things such as kissing and giving hickey's and maybe getting down to a girls tits. But nothing lower.

Guy 1: Bro I went to Casey's house yesterday.
Guy 2: For real bro.Did you get some
Guy 1: Nah bro just top stuff.