1. An adjustable wrench.
2. An imaginary tool of sabotage, destruction, overthrow and mischief.
1. Hey would you be so kind and hand me that monkey wrench?
2. Everything was going so well but then you threw a monkey wrench in my plan.
by Mattony February 28, 2014
Fool, gullible person. See Tool.
Quit being such a monkey wrench, Vellius. Chris knew it was you the whole time, you shippler.
by MJK October 8, 2005
To sabotoge or disrupt.
George W. Bush's claim of Iraqi weapons of mass destruction threw a MONKEY WRENCH in Colin Powell's political aspirations.
by Mikail Bevale March 6, 2005
My favorite Foo Fighters song of all time. Great lyrics, great guita, vocals ,and drums all done by the renaissance man Dave Grohl.
What do you do when all your enemies are friends!
by alex k April 16, 2004
When you bend a guys dick backwards between his legs and the woman sucks him off.
Monkey Wrench - When you bend a guys dick backwards between his legs and the woman sucks him off.
by Mac777daddy August 26, 2011
Where a girl girl pulls your junk between your legs a blows you from behind.
Man she gave me a monkey wrench lastnite!
by icemann79 July 2, 2011