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."
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
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.
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