A fairly stupid, bad writer that sleeps with donkeys and hobos. Also a term for that kid in class that always either poops his pants before second period or screams that he has his "man period".
Kid A: Did you see that Niffenegger?
Kid B: Yeah, he's as crazy as bat shit.

Pig: Boy, that cow is a Niffenegger.
Sheep: Sure enough.
by Leilaissofun March 31, 2010
Get the Niffenegger mug.