1 definition by Brian Troy

Top Definition
1)The act in which a man attempts to place one or both of his gonads into his own anus.
2)Any man who attempts the above action.

Term invented by Brian Troy of San Diego and popularized in 2004.
1)I caught Dave in the bathroom brown nutting.
2)Dave is a complete brown nut.
by Brian Troy May 06, 2004
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