Frit and Frat are two near identical imaginary friends who act in a similar way to Beavis and Butthead. They are both orange, with pear shaped bodies and messy, curly hairs in shades of red, black and grey. Frit has two wideset front teeth and a big black F on his stomach and Frat is bucktoothed and has a big black backwards F on his stomach . They appeared in "Pranks for Nothing", where they aided Bloo in his prank war against Coco. They were also seen in Destination Imagination, Bad Dare Day, and Goodbye To Bloo.

Frat's name may come from the word "Fraternity", a word used to describe a brotherhood. Frit may simply be a variation of Frat.