When someone is extra dirty. Like seriously dirty... boxes stacked up in the shower dirty... so dirty your skin looks grey and occasionally takes on a yellow, or brownish hue.
That guy over there's a Dirty Kurt.
30👍 10👎
When your out with someone and when they go to the washroom, you cum in their drink and rub your balls over their straw, then proceed to finger yourself in the ass, and put your fingers in their mouth.
Yo bro, I was on a date with a hot chick last night, and I did a dirty Kurt to him. heheheheh hahahaha