Top definition
When you have sex with a pregnant female. The term comes from the fictitious contact between the head of the erect penis and that of the infant.
"How was your night with prego Sally last night?"

"Let's just say we did some serious head-butting!"

"Niceeeeee"
by ForeverBethBredl February 14, 2010
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The vengeful act of crapping on a lover's chest while they sleep.

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