1 definition by Boner Jammer

Top Definition
When tucking ones penis between the legs, and one achieves an erection, causing said hard penis to poke at the anus of said tucker, creating a condition known as a boner eclipse.

See also fuck your ass.
Bill: I got a boner eclipse the other day.

John: What the hell is a boner eclipse?

Bill: Where your dick goes so far up your ass it turns into a boner eclipse.
by Boner Jammer September 05, 2008

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