1. when used as an insult, means the same as fuck off, or go fuck yourself, or get the fuck out of my house. Usually directed at someone irritating or ugly.

2. when used literally, would most likely mean (though no one knows who would honestly do this) to use the tongue and lips to actually suck someone else's intercourse. to lick and/or suck the area where the penis is entering the vagina.
1. Elizabeth: Donnie, you're such a fuckass!
Donnie: Oh yeah? Well, you can go suck a fuck!

2. "Man, I thought a threesome would be hot, but all that crazy bitch did was suck our fuck!"
by the justin January 20, 2006
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The act, which most girls have secretly honed for as yet unknown reasons, of completely collapsing with a single word a seriously hot moment, which would ordinarily lead to fucking.
Joel (kissing Emily's neck): So what now honeybuns?
Emily: Pizza?
Joel: Shit Emily, you really sucked the fuck out of that situation!
by cheddarfloor April 23, 2005
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To give a man a blowjob after he has already cum

Original use in Donnie Darko
by Teh Treu Wiz November 10, 2009
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When someone performs oral sex to the same gender... (Fucking faggots) (Queers) (Homosapian) (Gay) (Homosexual)
Bob gave steven a suck and fuck with a pineapple...
by The Rape Asser March 14, 2017
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*Really* sucking. Really being bad, beyond words. Usually applied to old, (S)NES video games but can also be used when sucking at doing something.
AVGN: It sucks so much it fucks. It fucks so much it sucks. It sucks monkey fucks.
by avgn_fan42 September 4, 2010
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when some hoe sucks your dick and you fuck them down the throat at the same time, making a chewbacca sounding noise.
hey wanna suck n fuck?
by d5unk November 29, 2019
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A unisex phrase in lieu of "suck my dick", or "suck my balls". Now women and men alike can just say, "suck my fuck".
Girl: I hate you. You're so immature.
Boy: Suck my fuck. -leaves-
by YodRicA March 9, 2014
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