An RV or some form of bus where people come together and fuck. Used for educational purposes only. Its long, hard and full of drive.
Yesterday we were rollin' in the spank tank... you know what that means!
by broskiparty June 7, 2009
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n. 1. The butt. In the same way a gas tank is filled up with gas, the spank tank may be filled up with a good spanking.

2. The mental database of naughty images to which one can spank the monkey when more conventional pornography is not, uh, "at hand."
1. Yo baby, come over here and lemme fill up yer spank tank.
2. My mom threw away all my porno mags. Now I have to rely on my spank tank.
by SkidMarkyMark May 5, 2006
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Noun: (1)a military vehicle(LAV) used for the express purpose of nasturbation typically found in deployed settings to boost the morale of male soldiers, never cleaned...think about it....possesses distinct functified smell
" Pollie Bear is the quickest person in the Spank Tank."

"Fernie never goes to the Spank Tank he only uses his wack shack, he's high class."

"The Spank Tank is for public use, but a wack shack is for private enjoyment."
by Lamelogic July 13, 2009
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A spank tank is a small private booth with T.V. monitors where people watch adult movies and masturbate in an Adult shop.
John entered the Adult Shop, walked to the back of the store to the "spank tanks" to masturbate while watching a movie.
by mz.tamara March 26, 2010
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Whatever sexual thoughts a guy is having when he is masturbating.
"Damn she's hot. I gotta put her in my spank tank."
by Tomahhtoe July 20, 2009
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1. To take a less than attractive girl home with you to engage in sex that the male dominates and to force her to leave early in the morning. 2. The last resort booty call.
That bitch is going to get the actual tank and spank tonight and i'm going to be tanking and spanking all night.
by Oasndeq April 3, 2010
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The gauge that measures how many things a child can do before taking an ass-beating.
A mother's Spank Tank was overflowed when her son spit at her in anger. This action was immediatly followed by a spanking with the iron palm of fury.
by Mark <Qtipp> May 17, 2007
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