Top Definition
When a man has anal sex with a woman who has diarrhoea.

Optional: After he has ejaculated, he then lies down while she sprays the contents of her ass all over his face.

Advanced: During the intercourse part of this, the man shouts "TIMMAY!! TIMMAY!!!" while thrusting.
"Hey man, I did a Dirty Timmy with Susan last night. Oh yeah, she REALLY let me have it afterwards. Took ages to clean up though"
by Janine Popadopoulous October 01, 2009
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