To add to the original post:

TOP = Yo she gave me top last nite but imma asshole so im never gonna call her again

SKULL = That trick gave me some amazing skull.

LID = she gives some mean lid.

FACE = Sally gives great face

CRANIUM = Dude, did you hear about Jack? I heard he copped mad cranium on friday.

LETTUCE = A blow-job, as in "head" of lettuce.

There you go on other terms of fellatio. Later, QD.