When a man, and another man are engaged in sex. Before the "pitcher" orgasms, he gapes his partner's asshole and dumps in a can of diet Coke and mentos before ejaculating into his partner's anus.
Holy shit Bartholomew! Your stretchy asshole is perfect for a colon comet!
the best person ever. faggot tranny <3 autistic smoke weed everyday xD!!! i love you and i forever will. you're the best thing that's ever happened to me
"comet/ava is the best person i've ever met."
A Halley's Comet is a particularly large, compact bowel movement that is so efficiently delivered to the toilet that it does not require any toilet paper whatsoever for clean up. The term "Halley's Comet" suggests the rare nature of this achievement... likely to genuinely occur only once or twice in a lifetime.
"Man, what a wicked dump. Felt like a Halley's Comet, but it turns out I still needed some toilet paper."
"I ran out of toilet paper last night. Fortunately, I had a Halley's Comet this morning, so I was good to go."
"That was the most satisfying shit I've ever had. Pure Halley's Comet. I hope I have another one in the next 80 years or so."
An unconscious human who has shat him or herself during free fall at terminal velocity.
Joey thought it would be funny to take Benadryl and laxatives at the same time just before sky diving. Little did he know, this would affect his ability to pull his chute, therefore causing him to become a Shit Comet.
When a female tickle her throat with you penis during a BJ and she vomits. Ugh.
Her BJ was fire. Until the bitch gave me the vomit comet.
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A projectile of period blood that exits a female's vagina when she queefs during a one week per month period
Margret! You got a pink comet on my almond jar!
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A splurge of airborne vomit that has not reached the ground.
Dude! I just saw a vomit comet come right off of the Wild Thing!
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