Decentralized Finance. Typically refers to apps connected to distributed ledger smart contracts such as with Ethereum and EOS, however, some refer to Bitcoin.
This DeFi trading app uses Metamask.
by undertheradar July 5, 2019
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Pronounced Deffy

When a girl reaches down your pants and grabs hold of your member, and instead of jerking or tugging, she simply holds it.
"Ahh excuse me bitch are you just going to give me a deffy, or are you going to do something with it?"

"fuck dude, all I got was a defy"

"Na fuck that bitch, she will probably just give you a defy"
by Harley, Lights & Styles September 15, 2011
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Disappointing selfie. A picture that was taken during a night out where you looked stunning however in the morning it turned out to be a a disaster.
- Julia, we took so many nice pictures yesterday night, remember? Can you send them to me?
- Let me see. Omg...Gabriela, we look terrifying

- Defie, again!?? Another night full of defies....
by gilil June 15, 2020
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Waste matter discharged from the intestines through the anus.; feces.
I left muh Defis in the toilet cause i was too lazy to flush it.
by Dubya Bush June 11, 2008
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To stand up to your opressor.
You gotta defy the Man who holds you down.
by AYB March 25, 2003
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Shortened form of "definitely".
"Do you think they'll let me into the party tonight?"
"Defi. You're bringing them a case of Yeung, they'll welcome you with open arms."
by FtG January 9, 2006
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de·fy Audio pronunciation of "defy" ( P ) Pronunciation Key (d-f) tr.v. de·fied, de·fy·ing, de·fies

1. To smoke more weed than all others have smoked before.
2. To refuse to settle for the little boobies, and only take the best tasting boobs that exist.
Hey man, you sure are a defy ;)
by UltraseXiE August 14, 2006
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