When two people rub their prolapsed assholes together. The flaccid rigidity, moistened surface, and sparse hair outline resembles kissing grandma on the lips. An extreme form of anal tribbing.
by FloppyNiggerDick February 5, 2009
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funny ass parody of Spongebob SquarePants. If u never saw, watch it!!!
Jon: "Yo u watch Grandma's Kisses yet?"
Rob: " Yea I nearly pissed my pants it was so funny!"
by HalfRecklessG May 7, 2008
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the greatest and funniest edit of Spongebob
Squarepants in the world. if you do not see it you will live the rest of your life in shame and dishonor
"I gotta boner!"
"Grandmas Asscheeks"
"My wang is as hard as a prosthetic leg."
"Grandmas kisses"
by Lolaws December 10, 2008
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when you "kiss" someone with your asshole while they're eating it/rimming you
"i love your grandmas kisses"
by cornychips June 5, 2021
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Taking a hit of a DMT vape pen, that is, inhaling thermally vaporized N,N-Dimethyltryptamine. In its pure, unadulterated format, DMT has an unmistakable taste similar to the characteristic smell of bad breath or, to some degree, the smell of human feces. It is a structural analogue of tryptamine which is, in turn, a metabolite of tryptophan, an amino acid in many foods.

Whether in the mouth (as part of halitosis or "bad breath") or in the human gut as part of the process of digestion, bacteria break down tryptophan into molecules called indoles, which are a pair of fused benzene and pyrrole rings that form the molecular core structure of N,N-Dimethyltryptamine, tryptamine, and tryptophan. (the double-ring twofer is also the backbone of other important chemicals like melatonin and serotonin, which may explain why food can influence your mood or make you sleepy). Indoles, one of which is called "skatole" because it specifically exists in shit, are particularly foul-smelling chemicals that contribute to the smell of bad breath and feces.

DMT is an entheogenic, psychedelic, and hallucinogenic drug that is structurally and functionally analogous to other psychedelic tryptamines like psilocybin (a.k.a. magic mushrooms), bufotenin, and others, and shares structural similarity with melatonin and serotonin. Because of its rapid onset and rapid action (lasting usually only a few minutes), it is the preferred substance for brief trips into hyperspace.
Noah languidly emerged from the bedroom with a distant grin on his face. "Sorry," he murmured slowly as the hyperbolic rubberband snapped him gently back into normal space-time after a dimension-bending jaunt through nonlinear space. "we were just... you know. Kissing grandma."

"God, that shit is so nasty," Tyler said, coming out after him.
by zorsnacks February 5, 2023
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when your asshole is so tight that you can give someone kisses with it when they are eating your ass
my boyfriend gave me a bunch of grandma’s kisses last night when i was eating him out
by puckeredlips September 9, 2020
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