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The act of exibiting the full male genitalia through the front hole of your boxers. While having the back end of the boxers rolled and jammed up your asscrack like a thong.
Hey Jimmy, if I show you my Sailfin will you show me yours?
by Nicholas J. March 15, 2005
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2
The full male genitalia through the front hole of your boxers. While having the back end of the boxers rolled and jammed up your asscrack like a thong.
Hey Jimmy, If I show you my Sailfin will you show me yours?

How bout I whipout the Sailfin and get this party started.
by Nicholas J March 16, 2005
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