manimal noun2 •(informal) A fanciful life form that is part human and part beast; a creature recognizable as human but possessing physical or primitive behavioral characteristics that are exclusive to animals.President panders to anti-manimal lobby! Dr Moreau flees country in rage! — 2006 •(slang) A person compared to such a creature, especially an unkempt and uncivilized, or strong and sexually aggressive man.Layton smacked his head hard on a front feeble, but bounced back up to get the make. That kid's a manimal. "Oh, he's so on the team," Diego kept saying. — 2004 formsmanimals