An abbreviation of the name for the practice of 'tantric wanking'. This is when one masturbates to the point of near ejaculation, but then suddenly removes his hand from his penis and proceeds to sit on it in a meditatory stance, thus ceasing the self-stimulation. The wanker repeats this process over the course of two to three days. Needless to say the result is incredibly spectacular, but can unfortunately result in knob-ache.
Boy 1: Where have you been for the past week?
Boy 2: I was having a tankwank Boy 1: woah.
When a man gets sexually aroused and 'horny' so he masturbates and when he cums he lets his seaman fly into the fish tank, killing the fish, but resolving his sexual fustration.
I had a wank last night and didn't want a huge mess all over the carpet so I did it in the fish tank!
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."