Divers tongue
Going down on a girl (or a guy) for a long period of time until you begin speaking in a lisp from the tongue's numbness.
"Dude, how was last night?"
"Ish wash greaht mahn."
"Bro! You have Divers Tongue!"
"Ish wash greaht mahn."
"Bro! You have Divers Tongue!"