Similar to nerd, except it refers to anybody who puts a bunch of rubber ducks right behind the front windshield of their car.
Dumbass A: "I put rubber ducks on my car!"
Dumbass B: "You're a Derd"
by LongLiveRougeTheBat September 14, 2023
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The mixture of a nerd and a dork. If you've been called this then it means you're both smart and weird.
Ugh, that's the derd table. They're too smart, but ew look that one is so weird too.
by The derd lord April 14, 2018
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