v., slang. To perform an action that is considered rude or asinine by the person to whom it is done. Such actions usually (but not exclusively) fall into three categories:

1) To clearly lie to, to bullshit.

2) To fuck with, screw with, harass.

3) To suck up to or kiss the ass of in an obvious, belligerent manner.
1) "Did you know that the word 'red' comes from the Indian word for 'blood'?" "I'm a linguist, you idiot. Don't butter my ass." 2) "You fucking suck at bocci." "Andrew, it's a friendly game of ball-throwing, there's no need to butter my ass." 3) "You are a god and I worship you." "I just MET you two minutes ago, so you can stop buttering my ass."
by Okzoz August 1, 2011
Get the butter my ass mug.
The rubbing of a male's semen on a female's entire ass or vagina using the penis.
"I will butter her ass"
"I always butter her ass"
"She loves it when I butter her ass"
"Butter her ass when fucking her"
by RatedChristo June 18, 2009
Get the Butter Her Ass mug.
N.; a usu. negative or pejorative action. Used in several contexts, and in speech is usually used in verbial form, "Don't butter my ass!", "Quit buttering my ass!", "I'm not buttering your ass!", "He's buttering her ass.", and so forth.

The origin of the term "buttering of the ass" is not known, but over time has developed three distinct meanings, with decreasing prevalence:

1) excessive kissassery or sucking up, usu. as a way to gain some sort of special favor or attention

2) egregious bullshit and/or obvious lies

3) fucking with or screwing with
1) "I love you so much, babe; you're the most beautiful woman in the world." "We've been dating for two days; don't butter my ass." ; 2) "Did you know that the term "roofie" comes from the Iroquois word meaning "to sleep"?" "I'm a linguist and that is such bullshit, so don't butter my ass." ; 3) "I'm obviously better at bocce than you, you fucking idiot!" "Alright Andrew, it's a friendly game; there's no need to butter my ass."
by Lax1334 June 6, 2011
Get the butter my ass mug.
The substance that accumulates in the crevice between the buttocks. Typically composed of sweat, dead skin cells, environmental soil, and trace amounts of feces, its production is often facilitated by rigorous activity or long intervals without bathing. Known to possess a rather unpleasant odor and foul taste.
I say, how old is this yogurt, mother? It tastes like ass butter.
by Lenny Rowan October 11, 2004
Get the ass butter mug.
The stuff you find in between your ass cheecks after not showering for days.
There was so much ass butter in the hobo's ass he could ass butter his toast.
by Jameses September 5, 2005
Get the Ass Butter mug.
Ass Butter: The cause of this occurrence is widely known among the over weight people that work in hot environments, as the body sweats the opening of the rectom sacreats a light yellow fluid with a pungent oder that has been recorded to smell from 6 feet away.
"Jason" fuck sake did u smell that fat cunt jump off that fork lift.
"Kevin" yea bro, he must be seriously turning up some ass butter inbatween thoes cheeks !!
by ICEsmoke September 14, 2018
Get the Ass butter mug.
That thick white spread you cake onto baby's asses when they have diarrhea. Could be Butt Paste, Desitin, etc... its all Ass Butter.
Wife: Damn it, will you shut that baby up?
Husband: Sure, pass me the Ass Butter... he's due for another spread.
by Noslot July 21, 2009
Get the Ass Butter mug.