a personal dig on a friend or enemy, depending on how you say it.

Implying an extreme Blow Job from their sister.
driver honking his horn: "Get out of the way asshole!"

Joe Flicking off driver "YOUR SISTERS THROAT!"
by twobarbreak December 21, 2008
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I just cleaned the shower, so don't kiss your sister!

no more kissing my sister, you.
(laughs) What? Huh? Hmm? Um, that's an expression for peeing in the shower.
I'm not gonna pee in the shower anymore.
Why? Why doesn't he get to do that? Yeah.
Yeah, that's true.
Why can't I? And why bring it up now? It goes right down the drain.
You know what? Let's all kiss our sister.
by Bexar86 May 11, 2015
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Your sister’s easy is pretty much saying that a girl kisses too easily. Kisses are supposed to be special.
“Omg, Your sister’s easy!”

That is saying that someone is kissing people too easily.
by Shkabeuksbdhzj October 4, 2017
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Your sister gives kisses to easily to people.
“omg, your sister’s easy!” That means that your sister gives out kisses to easy.
by Shkabeuksbdhzj October 3, 2017
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To have meaningful sex with ones sister.
i.e. Hey ziggy, I stove piped your sister last night and she loved it.
by Stove piped your sister April 13, 2015
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One of the more gritty underground roasts, please use with extreme caution. May cause recipient to go into an anaphylactic shock, epileptic fit and or straight up seizure. Other side effects which have been known to be a consequence of this insult includes full-blown autism or an addition of a chromosome.
Sarah: Your mother is a child-beating, cheap whorewho has achieved nothing manage to trap a man to have a child with her, a massive mistake... you. That mistake is you, you unloved virgin.

Janet: your sister a mister lol

Sarah: *Develops autism and literally fucking dies from her throat closing up*
by Joey Gobbless March 23, 2018
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Grab your sister, smack her in the face and if anyone gets mad at you for it say its smack your sister day
Friend: *smacks their sister*
Friend 2: Dude!! Why did you do that?!?
Friend:Dont worry, its Hit your sister day
by Aliee00000 October 27, 2019
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