An incredibly ugly, vile looking female that can only be described by something you find in a nightmare, a beast. Shebeasts are ugly and usually very fat.
by xGarthx June 07, 2011
A word used to describe an incredibly awesome female. Usually used in the setting where a girl has proved herself in a male-dominated activity. Shebeast is not to be confused with "hos" or "hoss", which although similiar, is not a synonym. Shebeasts are not only fierce in physically demanding activities but also in personality and appearance. One of the rarest species of women and coolest. Tons of fun and totally down with 'That's what she said' jokes.
by lepoisonivy June 23, 2008