Definition from Wiktionary, the free dictionary
Based on Froot Loops, a brand of breakfast cereal
- (pejorative, slang) Crazy; deranged; fruity
- You must really be fruit loops to think for one second I would go traipsing through the woods looking for Bigfoot with you and your whackjob boyfriend.
- Any ring shaped rainbow colored cereal.
- See also Wikisaurus:insane