The verb form of dunge. Someone who is acting like a dunge, specifically being slow-witted and stupid.
Typically used in casual context. (Eg: You're dunging right now. You are being so stupid.)
Adjective. To say you're being Dungy is to say you're being a dunge or dunging. To say you're being unintelligent.
Casual context. You're being so dungy rn. You're being very stupid.