1 definition by doodypie69696969

Top Definition
A person who lies as much as he shits and rarely bathes or changes clothes which allows him to maintain a highly unpleasant odor that can only be described as the Must.
"that dude that said he had a 10 inch dick was such a dunny."

"this room stinks"
"ya that dunny left the must"
by doodypie69696969 November 15, 2008

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