1 definition by the original dizzler

A man with a fairly ripped chest and arm package, yet has a full gut filled up for sex and other high intensity activities. Usually due to drinking huge quantities heavy beer such as melbourne/victoria bitter.
tom: gee your looking big in the gut.

john: its just my sex tank, got a threesome saturday night need heaps of fuel to get through it.
by the original dizzler October 19, 2010
Get the sex tank mug.