I'm surprised nobody has mentioned Dunsparce. It's just ridiculous. That said, Lickilicky, Magmotar and Bidoof are pretty dumb ideas. Bidoof is just a beaver, and Raticate was kinda beaver-like anyway.
Slwopoke is the dumbest pokemon though, or Snorlax. But with those two it's in a good way, cus they are thick but loveable.... whereas who would ever love a Dunsparce?