An excessively obese female. So large that calling her only a tuna is not substantial enough to describe how oversized she is. One big ass bitch.
Damn that bitch is tank, what a tuna boat.
by BiGMerK215 November 11, 2010
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1. A vehicle containing one or more hot pieces of female ass. You want to hit all of them.

2. A man's hog. This is a euphemistic definition deriving from the fact that after hammering on a woman's kitty, a man's penis can have a fragrance reminiscent of dead tuna fish.
Dave: "Hey, look at that carload full of poontang!"
Chester: "Yeah, that's a real tuna boat!"
by Ebin October 29, 2002
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Refering to the fact that a woman's vagina smells like fresh tuna. The boat refers to the area where tuna is stored. aka the woman vagina.
by Airburr/Fanman February 17, 2006
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a winter-season automobile driven by New Englanders.
"Norm, I banged the front bumpah of my neighbahz tuna boat."
by Sparky April 28, 2003
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sloppy, floppy, pussy that hasn't been washed so it smells like rotten fish.
close your legs i can smell your tuna boat
by fuzznips March 22, 2010
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when your man is gonna go out with his buddies and you dont fully trust him. you drink some tuna water and give him head before he goes out so if another chick is to go down there it isnt gonna smell good
Man my chick tuna boated me, I aint gonna get any strange tonight!!!!
by hbomb1974 August 27, 2019
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Performing hot oral sex on a wet and willing female.
Candy spread her legs and Carla went right in for a little fishing in the tuna boat.
by Eaton Holgoode September 30, 2015
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