When you're fucking a chick doggy style, she's hanging her head over the toilet either, dry heaving or upchucking (vomiting).
Woman is drunk, you're drunk, you gotta get your nut. So, you enter her from behind even though she is starting to throw up, or upchucking, maybe she's got the dry heaves and nothing comes out of her mouth. You don't care as long as you get to upchuck fuck.
by Redballs May 30, 2008
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When you force a person to swallow three fresh ass logs at once in an attempt to make them puke and possible infect them with something. This will only work if said person is someone from Urban Dictionary has posted one or more definitions (rejected or not) that involve consuming feces with possible rough anal sex, otherwise it is just torture.
Seriously people... stop posting disgusting shit on Urban Dictionary! If you are trying to get some form of recognition for something then get your damn facts straight and post a REAL sex position WITH REFERENCES! UD is for ALL audiences not just for you sick little cunts!

sick fuck upchuck
by TheTypoPoopcicle May 31, 2009
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When a man is about to dry heave and your girl puts a strap on on and fucks you in the ass.
I woke up in the morning hung over with a sore ass, I look over at my girl and ask her what happened last night? She looks at me and says, " I had to get my reverse upchuck fuck in babe!"
by Shamrock lovr July 23, 2017
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