1. to go top speed, to rush
2. to leave really quick
1. Race car drivers can brennanate 200mph.
2. I have no time, gotta brennanate
by PS2-64 May 22, 2004
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A sexual mastermind, Seen as a God, Someone who causes ladies to cream themselves on their beds
Brennan was so amazing in bed last night, I didn't have to go chafe myself
by some crazy blonde March 3, 2007
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A great guy withat a great heart.Hes there for you at anytime of day or night. He is tall with light brown hair and beautiful hazel eyes. But you cant forget he is GREAT in bed.
Damn...do you see that guy... he has to be a Brennan.
by paranoia neonangel July 18, 2011
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A sexy mexican astronaut with a tight ass, who can breakdance.
Maria: Who's that sexy mexican over there?
Enrique: Oh that's just Brennan .
Maria: I like his sombrero hat.
by Bonquishuh May 29, 2008
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A boy who has mad hoes but he know he was to work for everything he wants to get he started off broke but rose up and got rich he is mostly white but some black and French he has friends of all races and ages. Brennan also is a beast in the bed and ladies are wet just thinking about him
Girl 1: Omg that dude is so hot

Girl 2: I know he is rich too
Girl 1: Oh he must be a Brennan
by Clb.4l March 3, 2019
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pronounced: BREN a nate

to rush, go faster than normal, especially when using turbos or afterburners
My car was really brennanating when I used that turbo.
by 5'1' Racer January 27, 2004
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A man of Irish and Welsh descents, he has blue eyes and blonde hair a wonderful smile and can make you laugh anytime. He is extremely attractive and is the kindest, greatest and most thoughtful man you will ever meet. this guy makes your day perfect<3
'Look at Brennan he is so cute!'
by Kennaonfire October 3, 2014
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