Yet another witty slang term referring to an erect penis(stiffy; woodie; hard-on; boner).
Damn, Mark was so fixated on the hot stripper at the club that he didn't notice that his barn door was open, and his 7-inch long horizontal exclamation mark was sticking out in front of the whole world!

Mark H. Proud UrbanDictionary Author since February 2004.
by Mark H June 28, 2005
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