During oral sex, the male is sitting on the females chest as she gives him oral. The male then takes a steamy poop on her chest, as she continues to perform oral sex. The male then retracts his erect penis from her mouth, and flattens the mound of feces on her chest with his erection. After flattening the poop, he inserts his penis directly back into her mouth without any cleaning up. This my friends, is the Dutch Flat.
"What'd you and Stacy do last night?"
"We watched 16 and Pregnant and I gave her a Dutch Flat. It was cool."