Top Definition
A mongbag is a complete and utter waste of space or simply, an ignorant moron.

The mongbag may be located drinking alcohol in the street with bright tracksuits and sporting baseball caps at a very high angle.

A mongbag can also refer to someone who isn't quite on the ball with current affairs, be they global or local within a relevant time frame.

"You didnt remember the groceries you complete mongbag wipeout."


"That guy hasn't a fucking clue, the mongbag".

by Zola365 March 31, 2009

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