Definitions by JayCJP

smumg 

Meaning: Sad, Dopey, Stupid, Senseless and Lame

When your mate is being a dick you call him a smumg guy or just smumg.

Pronunciation:
Smum-g (g sounds like ge at the end of strange)

Josh: "Hey bro can you shout the food I forgot my money?"

Jamie: "What a smumg guy, you did this last time."

Josh: "Oi bro don't be smumg."

smumg by JayCJP June 2, 2016