A bro who rides dirt bikes. Commonly shows up at the track with a lifted truck and more bro friends who has a completely decked out bike with a lot of stickers and wears bro gear including but not limited to Fox, Metal Mullisha and SixSixOne. Deegan's typically do not race MX but show off via Free Style tricks.
Whoa did you see that Deegan? He hit a superman over that table top.
by antideegan July 16, 2009
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one who loves to have sex with little schoolboys outdoors (because they all say "you've gotta work them in early") while training squirrels to suck on his nuts (but they sometimes have a tendency to bite very hard)all while listening to the sound of gnome midgets having a massive circle jerk in which they shove sour-cream flavored dildoes in their asses (in and out to the beat)....all while listening to the thong song and wearing thongs themselves
"that kid is such a deegan"
"ur mom is such a deegan"
Kenny deegan is the biggest flamer in the world
by Master Bater January 15, 2005
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1. One who has no pull in Vegas.
2. A Sucker
You roll to the club with no girls, no reservation, and now you are waiting on line like a bunch of deegans.

They Got me flying standby like a deegan.
by eric on the spot January 22, 2008
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noun: Severe diarrhea (aka major D).
Man, I just had some Taco Bell, now I've got to hop on the Major Deegan.
by James-NYC November 25, 2007
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Only the coolest of cool moms can be called a momma Deegan. They are a rare breed of person mixed with an Irish brogue and homey warmth.
(First person) - "Hey your mom scares me when I'm in the car"
(Second person) - "I know, she's not like a momma Deegan."
by spenyk July 11, 2008
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The coolest kid around, a great friend and an extremely smart kid. He’s got a big heart and an amazing smile with eyes that make you melt. He’s someone you can trust and talk to about anything. Deegan Darr is a keeper for sure x

He also says that siennas a monkey bum
Hey it’s Deegan Darr I might as well give him all my money
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The coolest kid around he is smart, tall, strong and a mental superior so if you see him then you better hope he is in a good mood.
Person 1. Ohhhh crap it’s Deegan Darr we got to run
Person 2. Damn let’s get out of here
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