look up any word, like ratchet:
 
1.
To step up to the challenge, get motivated, work harder to get the job done. Man up. Entice. Motivational statement.
person 1 - "i'm really struggling to all this done in time..."

person 2 - "you're gonna have to gear up mate."
by someoneathts December 06, 2009
 
2.
to get ready to smoke marijuanna or gear/ smoking before attending a social function.
dude, the bbq is going to be lame.
fuck that, i'm gonna gear up for it.
damn.
by bonerz September 30, 2007