Jeffy

Jeffy is one of the main characters of SuperMarioLogan.

Biography
Jeffy was Nancy and the late painter Jacques Pierre François' former son and Mario and Rosalina's adoptive son.

Personality
Jeffy acts like a spoiled brat and acts annoying, immature childish.

He can also be short-tempered and arrogant in some videos when he gets angry.

He also hates green beans and likes to throw things, put pencils in his nose, spank his diaper, play his Cat Piano, say coarse language and put pee-pee in stuff.