Uncontrollably horny female with a hunger for dick, ready to take it in any hole at anytime.
Did you see that girl brought a 12 pack of condoms with her to the party? "Yea she's real derpy"
by Terez Slowens October 06, 2015
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A universal nickname for that really annoying girl that everyone hates. She could be your clingy ex-girlfriend or the girl in your government class that always asks stupid questions. If she's "Derpy" then chances are that everyone you know can find something they hate about her.
"Dude, derpy showed up at my house yesterday, she's so creepy!"

"Are you talking about that blonde chick with the annoying voice? I hate that chick, she gets on my nerves."
by thedirtydan May 17, 2013
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Pedantic, Long Winded, Wordy didactic, preachy, expository, pedagogic, punctilious, full of long winded BS.
1. Derpy is Instead of saying "I have to use the bathroom", he said "The universe has instructed me that I must use this period of time to evacuate my bowels. 2. "Derpiness, like entropy, tends to increase, but that doesn’t mean we can’t resist."
by jaquessschitt July 14, 2015
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Derpy Hooves is the name given to a gray pegasus pony with a cutie mark of bubbles, by the brony community.

She is mostly seen with crossed, or otherwise distorted eyes, and may very well have been creator goofing around or making a mistake.

Many people have Derpy as their favorite pony, and there is even a flash game named Derpy Delivery in development.

Derpys real name may be Ditzy Doo, since it is referenced in the Winter Wrap Up episode, and was also mentioned by Lauren Faust.

There's many instances where multiple Derpy's can be seen in a single frame of the show, but the most common ones have only 1, and her eyes are derped out.

There is only 2 currently possible speech lines for Derpy, one being Muffins, and the other being a mess of hushed speaking in a crowd when Trixie, another pony from the show, is showing off.
Derpy Hooves is almost completely fan made, never the less she is one of the most popular.
by Slice-n-dice July 10, 2011
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