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1.
When a woman is receiving vaginal oral stimulation from another man or woman of Mexican decent. Then, during the beginning stages of her orgasm, her body will start to involuntarily spasm and twitch at which point the Spaniard must immediately proceed to punch her in the kidneys repeatedly as hard as humanly possible. If this is performed correctly, the woman will squirt vaginal secretions mixed with blood from her damaged kidneys out of her urethra causing a Dirty Diego.
-Hey champ!
-Waddup hotshot.
-You do anything crazy last night?
-Eh, not really.
-What did you do?
-I just gave some hussy named Chastity a dirty diego.
-Holy shit! are you serious? Atta boy...atta boy
by Rkellyisacockgobbler69 January 20, 2012
 
2.
When you take a dump on someones chest, and draw a smiley face with it. Then, you take a wet nap and smear it around until it is wiped up and you mess is all gone.
While aunt boots was ridin' dirty i gave her a Dirty Diego while i rubbed kelly's red hairy nipples and rubbed her bush.
by Kalin Settle May 09, 2006