Definitions by FrootLoopsAaaa

guts ache

When your guts hurt like a bitch. (Expecially if your have a food allergy like lactose intolerance etc)

Ugh I ate so much food it gave me a guts ache.
OR
I had so much ice cream! I'm gonna have a guts ache later, I can already feel it

When your gut hurts like a bitch (Expecially if your lactose intolerant)

AGH THAT ICE CREAM GAVE ME A GUTS ACHE