by LiL'Nappy Jones(LNJ) February 27, 2005
by LisAnne Becotte` June 09, 2005
To challenge someone by getting in their face and disrespecting them with belligerent comments or trying to stare the them down.
I was laughing at this guy behind this one dude and the dude thought I was laughing at him so this nigga had the nerve to BUCK UP to me and I had to lay his ass down.
by Joshiro007 February 12, 2003
by grimkey June 21, 2006
Jake examines Mike's life, Mike's cars and Mike's houses in various locals. Jake turns to Richard and says, "Mike is Bucks Up, bruh."
by fur burglar April 06, 2010
When 1 male co-worker decides to have sexual intercourse with another male co-worker for personal gain, or, when 1 male co-worker offers up homoerotic sex to another male co-worker to payoff a debt.
After years of working together Tom realized the only way he was going to be invited to the party was if he started bucking up with Jim.
by Unknow-69-69 March 14, 2016

