Top Definition
Literally: "That big tall thing in Paris, France"

A reference to "The Eiffel Tower", the sexual act where one man receives oral from a woman while the other man does her doggystyle. The act wouldn't truely become an Eiffel Tower until to two gents did a double high five.
"I saw Alex the other day, she is such a whore."
"TBTTIPF?"
"LOL"
by UCP May 31, 2007

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