fummble 

When you trip up or stumble over words in a speach.

Damn it, I know I'm going to fummble over the speach

fummble by Jsjsbejesbwne October 3, 2018

Fumbled the bag

When you got a good looking girl that was down for you, but you fuck it up and now she don’t want you back!

You had her, but you lost her?? You fumbled the bag bruh!

Fumbled the bag by hoodigan June 4, 2021

Fatal fumble 

Dropping a phone or tech gadget only to pick it up and find out it just ain't the same. It's broke. cracked screen damaged phone bricked

I'm so pissed at her cause she bumped into me and made me do a fatal fumble.

I'm only using this phone cause I had a fatal fumble with my other one.

Fatal fumble by Summerbees May 24, 2011

Fumblemickdumbderkins 

A big word used to describe an even bigger idiot

That fumblemickdumbderkins is the worst person I've met.

Fumblemickdumbderkins by ItsRedGrover December 13, 2021

Fumble 

When one is given a romantic or sexual chance with another and somehow messes up

He was giving really obvious hints that he liked her! How could she like him back but be unable to tell? She fumbled.

Fumble by nolivesmatterdumbo May 28, 2023

fumble the bag 

when you majorly fuck up something

ted and bob let exams get to them this year, they continued to fumble the bag and y’all hate to see it.

fumble the bag by fumbletumble December 18, 2019

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