To refer to a person of ugly appearance, a person who is also meaningless and un-important.

This is a harsh reference that should not be made lightly.

Derived from the two words Chumba and Squat, see dictionary for definitions
In context as a retort "What did you call me you filthy chumbasquat?"

or

"Blimey Steve did you see the boatrace on that chumbasquat?"
by Andy and Dave July 19, 2006
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