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1.
A guarantee to your friends, that in a designated period of time, you will hook up with a girl. This is a way to put pressure on yourself to not be a bitch and talk to chicks. Failing to fulfill the Zimmer results in a penalty. Recommended starting penalty of a shot of well vodka. A play off of George Zimmer's famous Men's Warehouse saying, "I guarantee it!"
Ryan: Hey Don, did you complete your Zimmer this weekend?

Don: Ya, the Zimmer has been fulfilled. It was a last ditch effort at the bar, but I ended up giving her my beef hammer
by ThirdandKing July 20, 2011
 
2.
The description of a positive end result
How's that greasy pie, fatty?
-"The meat to potato ratio is text book. It's a zimmer mate, thanks for asking."
by Sam Calvert May 29, 2007
 
3.
to move very very slowly along while desperately clutching onto a supporting object
"I think I'll try and zimmer over to your place tonight, Dear"
by Bilmo February 19, 2007
 
4.
(n.) 1. the part of any break from school where you start becoming extremely bored from lack of something to do and from missing your friends.
2. the point in any break from school where one starts wishing for school to start.
- Knowing that spring break was approaching, i prepared for the zimmer that was soon to come.
- I hate the feeling of zimmer washing over me.
by I Am The Waiting September 05, 2011
 
5.
An electrical device (usually a coffee grinder) used to bust up bud (weed). NOT THE SAME as a grinder.
"Hey, wanna use my grinder?"
"Nah, I got a zimmer, no hands needed!"
by 420swed420 April 22, 2009