1. An act that can be accomplished only by a swimmer and a girl. It consists of pull buoys, kick boards, the deep end of the pool, and some very strategic movement. A swimmer that accomplishes this would be known as a god among his team mates.
2. Slang term for pulling off something crazy.
1. Jake took Mandy to the pool yesterday after school and they had sex in the deep end!
2. You did what? That's total sex in the deep end, man.