horizontal exclamation mark 

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.

horizontal exclamation mark by Mark H July 9, 2005