When you keep your scrotum in a girls mouth so long it is no long a dipping, but just keeping it in her mouth. known as "ice cubing" because tea bags are ment to be dipped, and ice cubes stay in the water, which in this case is a girls mouth.
dude, i kept my ball sack in her mouth so long i was ice cubing her!
The act of performing fellatio(oral sex) on a man while holding one or more ice cubes in your mouth to create a tantalizing hot/cold sensation. For a variation; Mentos, or any other mint, or Pop Rocks candy, or a sip of champagne can be substituted for ice cubes.
Guy: Dude! Nora was ice cubing my dick last night, it was awesome!
Dude: Man, that shit just gives me goose bumps!