1 definition by uradonker

a person who does everything wrong.

(this word is good for use around parents- it's not a swear word so you won't get in trouble. they'll have no idea what you're talking about)
big brother: you forgot to flush the toilet again!
little brother: oops.
big brother: shut up. you're such a donker.
by uradonker May 20, 2009
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