Butt Fumble 

To completely fuck-up in your profession. A butt fumble (n) or to butt fumble (v).

Example 1: Did you see Mark Sanchez, the Jets quarterback, run into the ass of his own lineman and lose the football? That butt fumble has been voted the worst of the worst sports mistakes for two months straight now.

Example 2:
Surgeon A: “I can’t believe I amputated the wrong leg of that patient."
Surgeon B: “Man, you totally butt fumbled that operation. You're probably going to get your license suspended."

Butt Fumble by euphemismo April 13, 2013

fumblescrew 

The act of trying to make it look like you know what you're doing in a given situation, while in reality, you have no idea how to proceed.

Stop fumblescrewing around and look it up!

fumblescrew by Gman-Cat Wrangler April 28, 2008

fumblenugget 

When someone is being a dumb goat

Billy your such a fumblenugget

fumblenugget by Indian sex bomb April 28, 2016

Fumble the bag 

Miss out on a chance to make money or fuck something up in the process of getting money, causing you to not be able to get said money

You had a chance to rob him and you didn't? That's how you fumble the bag

Fumble the bag by fuckjcsy June 20, 2020

fumble 

A fail or mistake of epic proportion

damn that boy fumbled

fumble by Black and gold King June 24, 2010

celebrity name fumbler 

A person who constantly screws up celebrity's names. Examples: Warren Beauty,Thelma Blair,Paris Hinton,Kenunu Reeves,Gary Boozey,Rick Jagger,The Elderly Brothers,Tommy Jones Lee.

My girlfriend was talking about some movie starring Angela Jolie. She's a habitual celebrity name fumbler.

celebrity name fumbler by wolfbait51 May 6, 2011

Fumby 

the funny blue dog. Also called Fumb, Fumy, Fumbus, or Fumvy.
Enemy of the Anti-Fumby gang

my name Fumby, you Fumber.

Fumby by fumber March 8, 2021