Kevin Millar's pregame chant as he grabs his ankles and takes it in the stink from the eight other starters on the Boston Nine.
by Eaton Buch May 18, 2005
A term used by small city fire departments when a Big City Fire Fighter takes initiative to accomplish a task during an emergency without being told to do so.
Did you see the Big City Fire Engineer "Cowboy up" when he took lights and blowers to the front door of that structure fire? I.C. never requested that.
by Johnny Wayne October 05, 2013
by Sage November 16, 2004
You: We ready to go mow some lawns now?
RJ (typical hillbilly name): YEAH BOY, LETS GO BABY, Cowboy Up!!!!!!
You: Ok then...
RJ (typical hillbilly name): YEAH BOY, LETS GO BABY, Cowboy Up!!!!!!
You: Ok then...
by Lord_Ahrim1536 June 26, 2015
by txGeek October 10, 2003
by Bob Weadababyitsaboy May 03, 2006