1 definition by Fuel Tank 4

Top Definition
an internal source of extreme amounts of energy used during times of physical exertion such as sex or rowing
Idiot: Barney, it looks like you are getting a little round around the middle *poke*.
Barney: No, you idiot, that is my fuel tank. It is how I pwn you so hard when it comes to fucking hot girls and on the water!

The Fuel Tank 4 is ultra fast, steamrolling past the competition.
by Fuel Tank 4 April 18, 2006

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