Someone who is a foo (fool) and a beast (someone who's nether regions surpass that of a bears, and it resembles more of a mythical hairy beast). See also Foobear. It can also be pronounced foobeas' in ebonics.
that girl's not a foobear...SHES A FOOBEAST!
ayon kay Foobear ika-14 ng Pebrero, 2004