Going to the swamp, and "surfing" on a gator with your toes hanging near the gator's mouth.
Bob: Hey, buddy! How was your weekend?
Buddy: Oh, you know. Just hanging ten on a southern surfboard.
Bob: Damn. How many toes did you lose?
Buddy: surprisingly, only 2. Garry Gator is getting used to me.
Ten on the Two - adv. To expound on something you know nothing about or are not an expert at hoping to impress people or gain more popularity. Coined from putting 10 dollars down on a crap game hoping to score the big pot, thus, 10 dollars on two dice or Ten on the Two.
I hope you know what your talking about kid 'cause it sounds like you puttin' Ten on the Two!