The exact number of any exaggerated quantity of anything (minutes, books, tacos, etc.).
Hey, i saw sally sit in your lap at the party last night. did you finally give in to that swamp donkey?

What?! No, of course not. She weighs like 4 billion pounds!
by Barnaby J. July 11, 2008
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When during a sloppy blowjob the blower gags twice then vomits profusely, whilst tossing their head back, either causing a mess or an orgasam. The 4 Billion referring to how many nightmares the blowee will be having.
"Damn bruh last night my girl gave me the Double Glob Glob 4 Billion with "Toss Back™" Action".

"Really?"

"Yup. I took her off my life insurance."
by DG7205 October 29, 2020
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