Top Definition
The sudden, instantaneous onset of an erection without any apparent cause. Occurs in situations devoid of sexual impetus.

Also known as dickswell.
"I can't figure out why, but everytime I ride the train I get dickhard right before I have to get off."

"Im sorry Mrs. Applebottom, but I can't come up to the board and solve that math equation...I have dickhard."
by Elmer Pud April 15, 2009
2 more definitions
Hard, tight, off the hook, very nice.
That car is dick-hard.
by Al January 17, 2003
a description of a thing or an act that would be deemed noteworthy or cool
that shit is dick hard!
by blanthony September 15, 2010

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