Used to imply that theres a "dirty rotten rat" around.
Practice the code of silence, when theres a fungusamongus.
by CharaBlizza'did July 21, 2011
When you feel like shit after smoking old/bad weed.
Yeah, she doesn't smoke anymore since she got that fungus amongus from chris' bowl.
by toke oner July 03, 2006
Melanie aka a fungus around us.
Whose a fungus amongus? Melanie hehe
by Bob Cheese December 27, 2003