1) A sex tank is a complimentary expression for a female who has a physique characterized by a curvy
buttocks, a medium waist and large breasts
. However women like these are rare, perhaps 1 in 5,000 in the general population. 2) A solidly built-for-sex body. 3) A female that could stradle you and you would be very lucky. 4) A female body that was made to please a man.
"Damn. Did you see that sex tank in the store?"