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A verb meaning to engage in and perform aggressive oral sex upon a female while under the influence. Usage is usually accompanied by box as a reference to a womans vajina.
(1)When she asked me to do so, I felt I had no choice but to rosen the hell out of her box.

(2)I realized that the only way I could ensure my sexual dominance was to rosen her box until she asked me to stop.
(3) She didn't want to have sex with me that night, so as drunk as I was I just rosened her box until I passed out.
Rosen by gmart22 May 31, 2009
a small hobbit like creature. rarely bathes, and is often seen asking for money or smokes. Is generally either high or drunk.
rosen by rednaxelaalexander October 18, 2008
A verb meaning to screw your friends over for your own personal gain.
Max certainly rosened his entire fantasy football league with that last trade.

I don't think you want to go on a trip with that guy. There's a strong chance you'll end up being rosened.

I never thought Scott would rosen me, but he told Becky that I have a girlfriend just so he could make her stop talking to me and go on a date with him instead.
Rosen by Mortemer Mouse November 30, 2011
While you are playing Texas Hold'em and you have a Jack of any suit and a Ten of any suit in your hand.
J,10...that's it...The Rosen
Rosen by Ben Rosen September 27, 2004
Verb. Used as a term for flaking an event midway but getting away with it.

Going to an event and being scene, but slipping out early so no one gets angry at you.
Joey, “yo arnt you supposed to be home for th weekend ?”

Norman, “I was but I pulled a Rosen, and showed face but left early”
Rosen by elmo11257 February 6, 2020
Bro can I copy your homework?
Sure, just don’t do a Rosen and change some of the words
Rosen by WhyNoNamesAvailableBruh January 31, 2023