Top Definition
One who is dumb, socially awkward, stupid, homosexualy funny, and/or one who does funny things without trying to and doesn't know why people are laughing.
Because Roman shot himself in the eye with a bottle of lotion, he was considered a chunk dumb the rest of the day.

Because Roman got a 47 on his IQ test, he was called a chunk dumb.
by Master of chunk September 06, 2011
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