mispronunciation of the star of pokemon used in a humorous way to make fun of people who like pokemon
shut the fuck up ass ketchup
by peelshere January 12, 2011
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When you shart, and and the blood from your cancer and/or rectal infection turns the poopy soup into a tomato flavored red paste, like ketchup.

Origin: While playing I was playing Pokemon (cause I'm a beast), my brother tried to say "Ash Ketcham," but failed like a woman. Naturally we made it into a word.
Chaz- *farts nastily with much gusto* "Aww man, I think I just made ass ketchup... Darn cancer/taco bell."

Bob- "Ever since Todd developed that digestive disorder, the only thing he has had on his burgers is ass ketchup."

Richard- "My name is long for dick."
by PicnicTimeMotherFUCKER May 20, 2010
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When you give it to a girl so hard in the butt that her bum starts to bleed.
Ron: I gave it to lucy so hard last night she started to bleed out her butthole.
Tom: What did you do?
Ron: I licked it up. I love Ass Ketchup its sooooooo kinky.
Tom: Wow you are weird.
by RedWhiteAndDead February 5, 2008
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The blood that pours out of a girls' ass onto your "hot dog" when you fuck her too hard.
I could tell she hasn't done anal before from all the ass ketchup on my dick
by RENNYFACE July 30, 2010
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When your period is heavier than expected and it climbs up inbetween your ass cheeks.
I have a serious case of ass ketchup right now.
by SonicCroissant April 9, 2016
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When Ya Start bleeding out Ya Anus like a Period but opposite. Not to be confused with Ash Ketcham and Period.
Wow man you really got some Ass Ketchup. It's staining through your pants.
by ThatGuyThatDoesntKnowWatHeDoin December 18, 2016
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A person who lacks adventure or taste. Afraid to try new things, and only plays it safe
Guy 1: “I don’t know man, I don’t think I’ll like it. I’ll just get McDonald’s or something.”
Guy 2: “Bruh, stop being a ketchup ass nigga! You ain’t gonna die!”
by WeeBeeBuckets December 26, 2022
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