The fruit of a healthy natural relationship between a lady of child bearing age and a toilet seat adorned with random male jelly jewelry.
"No I don't know my dad, I'm a fucking Seat Baby"
"You can't microwave a kettle you fucking Seat Baby"
"You can't microwave a kettle you fucking Seat Baby"
by synackle September 23, 2008
by VapoRub Baby April 30, 2006
Because Ricky and Charlotte have only had sex once, in the back-seat of his car, and she is now pregnant, her child would be considered a Back-Seat Baby.
by Charlotte Lyons March 21, 2009
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