1 definition by Headhole

Top Definition
the act of either just plain hating everyone and everything around you, or; saying or doing something completely out of left field, thus baffeling those around you and then walking away, causing their respective brains to hurt with your own stupidity.
"i will never understand that grossheider..."

"he always pulls that grossheider crap when they come around!"
by Headhole April 08, 2007
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