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Similar to pyjamas, (or pj’s). Your dayjays are the comfortable home clothes you wear during a day loafing at home. Usually an old torn tshirt or scabby trousers with a hole in the crouch, but for some reason you don’t throw them away because you love them.
"I can’t let her see me like this, I’m wearing me dayjays"

"Stop bugging me! I’m leaving home soon, just need to get out of my dayjays"
by Dayjay Man September 06, 2011
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