BUCK UP

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
mugGet the BUCK UPmug.

BUCK UP

to play rock, paper, scissors when a tough decision has to be made.
who takes the last slice of pizza? alright buck up: one, two, three, shoot.
by grimkey July 13, 2006
mugGet the BUCK UPmug.

buck up

by Tonka567 February 11, 2013
mugGet the buck upmug.

Buck up

To rise to a challenge, to do something others are unable to
"You need to Buck Up and get back on that horse."
"Buck Up and go talk to her."
by DonJuanBurrito September 16, 2005
mugGet the Buck upmug.

Buck up

Buck up means to basically grin and bear it, kinda like sayin "get over it" only more nicely. It's especially used in the south and often in small towns.
Mark was complainin about the rain ruinin the huntin trip and his dad said "it'll be ok, just buck up"
by libbylee2487 April 23, 2005
mugGet the Buck upmug.

bucked up

To be really happy about something.
Girl, you too bucked up that he called you last night.
by Marshika February 01, 2006
mugGet the bucked upmug.

Buck Up

It means 2 cheer up, get ur self 2gether, stay up.
They stole the ducter sir!!!
Buck up bart buck up.
Tha movie How high-
by LiL'Nappy Jones(LNJ) May 13, 2005
mugGet the Buck Upmug.