The act of getting down on one knee and giving a blow job. There are certain rules and regulations that are involved with the Teblow: two fingers up your ass and it's a safety, tea bag her for a sack, cum in her hair is roughing the passer, spitting is a fumble. An interception is if a third party would grab the nut sack. Cum in the face is face masking, and blowing the load in your pants is a false start.
Susie was down on her knee to Teblow John, but he was flagged for a false start for jizzing his pants.
Verb: Teblow tee-bl-o: The act of a female (or male if you're gay, not that there's anything wrong with that) dropping to one knee, resting her forehead on her fist, and proceeding with fellatio. The male then finishes by firing his ejaculate wildly around the room.