Army

Tanks come in two forms: 
The dangerous, deadly kind and the "liberating" kind.

~ Robert Fisk

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Leslie and I were talking about the Army / Navy game and she said it was interesting how different people engaged with it and, I guess, with football in general.  Leslie said that each person celebrated or got fired up about the game in his or her own way.

Leslie:  Whatever floats your boat, I guess.

Me:  Are you allowed to say that?

Leslie:  What?

Me:  Shouldn't it be "Whatever yanks your tank?"

After reflecting, "Whatever yanks your tank," sounds kind of like a double entendre.  Almost any time you use the word "yank" it sounds like a double entendre, though.