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1.
A vulgar sexual act consisting of missionary-style intercourse when upon climax the male jumps up onto their partner, letting loose his fluids all over his target and the surrounding area, right before spinning around and taking a large shit on her upper-chest/facial region.
That whore cheated on me, so I fucked her hard then gave her a dirty herman. She was so fucked in the head, she went to the hospital crying and shit-covered.
by Drakari December 24, 2006
 
2.
When you are at a club and someone sits on your hand then you rub that finger under the sitter's nose.
Anne gave Becky a Dirty Herman and never apologized.
by YowNow May 15, 2008