bloody blunder 

A bloody blunder is a person who is clumsy and dim witted or just annoying you.

You bloody blunder just shut up.

bloody blunder by Tahiki May 10, 2022

Mizzy blunder 

A blunder so extreme that all hope, pride and integrity has been lost for the individual that has committed the action. A Mizzy blunder may lead to friends and family losing respect for you and turn you into the laughing stock of any social group.

How are you gonna turn down that hot girl, that was such a Mizzy blunder!

Mizzy blunder by University of Toronto Language October 5, 2023

Bozo Blunder 

Also known as “The Classic Bozo Blunder,”the Bozo Blunder is a impactful mistake made by the opponent or yourself, usually during a Chess game, that in hindsight was a move that gives the other person a large advantage. Please not that any given mistake is THE Bozo Blunder and not A Bozo Blunder, since each successive Bozo Blunder trumps older ones, seeing as you had the chance to improve but failed, defining the new standard for Bozo’s and Blunders everywhere.

P1: Nxd7 (?!)
P2: Is that really your move?
P1: yeah
P2: Well, that was the CLASSIC Bozo Blunder!
P2: Qxd7 (!!)

Bozo Blunder by Hansjörg Brenton (IGM) January 9, 2024

German Blunder 

This is a Connect-4 move which involves the other player forgetting how to play the game and letting you stack 4 tokens on top of each other.

"How did I win with a german blunder" - (Optimal) Player
"How did I let them get a german blunder" - Other (Sub-Optimal) Player

German Blunder by Jyenormous May 20, 2024

Freudian Blunder

A freudian blunder Is when a person makes a personal statement and regrets It later or in most cases, instantly.

Person A: "I think Hannah Is hot as hell!!"
Person B: "Dude, thats my sister"
Person A: "Damn, what a *freudian blunder*"

Freudian Blunder by SP00NM4N November 6, 2025

Bobcat Boner Blunder 

This one is simple, it is when a cat mistakes your boner for a mouse so it jumps and attacks it ferociously until it bleeds.

1. Hey Steve, my cat did a Bobcat Boner Blunder to me last night

2. I hate it when Max does a Bobcat Boner Blunder to me, it stings.. but I kinda like it

Bobcat Boner Blunder by Soggy sack December 18, 2017

One-hit Blunder 

When an artist is recognized for only one song, and that song failed in the sense that it's only enjoyed ironically or as a torture device

Rick Astley, Smash Mouth, and Darude could each be considered a one-hit blunder

One-hit Blunder by FresnoNightcrawler June 25, 2019