A man who loves to do cocaine on the regular and likes to shit in his hand and clap.
Usually seen walking fast paced, jaw swinging, lip syncing to a song. The majority of dirty Kristons are massive whores who will give their booty up for a free glass of wine and have smelly sweaty ballsacks.
Dirty Kristy is when she is dead asleep and didn't wake up to the loud ass bathroom door scraping across the floor any of the 5 times you used it, then you decide to beat your meat and the sound of you unzipping your pants causes her to raise up out of bed like the fucking Undertaker.
I went to play with myself last night and my girl pulled a Dirty Kristy.