The G-Rated term children can use in place of ASS. Way cooler term to use than buttocks, which when viewed from a child's perspective, can sound rather silly.

Ass is rated PG-13 and is acceptable for use on television and radio.

Fuck my ass, however may only be heard in Greece, XXX-RATED porn (gay or straight), and finally in the director's cut of both Sparticus and Ben-Hur.