A jerk or asshole; a mean or rude person; someone seen as being arrogant, snobby or obnoxious.
A sterile container which holds the fluid used for giving a vaginal douche.
Any social misfit; a doofus, dork, or nerd.
A base and contemptible person.
The brown rat (Rattus norvegicus).
Used other than figuratively or idiomatically: Any rat that lives in sewers.