Blumder 

A public works project promoted as progressive, but actually designed to intentionally discourage auto travel, resulting in significantly reduced safety for bicyclists and pedestrians due to increased traffic congestion, and degraded local living conditions.
From Blum + Blunder.
Named after Marty Blum, Mayor of Santa Barbara, who allowed unqualified planners to construct failed projects without approval of the Architectural Board.

The hazardaround pushed through by the sociologineer was another Blumder, causing more congestion and accidents. I'm going another way; I don't want to ride my bike through that chaotic Blumder.

Blumder by psnack February 2, 2009

Blunderbussin Shmogoggular 

A person who has reached the pinnacle of whatever it is that can be, this person is beyond time space and existence as we know it. To be called this is confirmation that you are one of the most based individuals to ever exist.

"That bloke is a real Blunderbussin Shmogoggular"

Blunderbussin Shmogoggular by ^Tree July 9, 2022

sunder blunder 

A destructive, albeit amusing, party foul.

Dude you just woke up the entire house with your vomiting? What a sunder blunder.

sunder blunder by trinity2010 July 13, 2010

blunderkind 

opposite to ‘wunderkind’ \ an accident prone person of any age

He’s an accident seeking somewhere to happen – a total blunderkind.

blunderkind by ΔиłĦ☼иצ ߀₡ʞ September 2, 2011

flarpy blunderguff 

Word made up by CBS for the show Criminal Minds. Episode titled The Black Queen, aired 01-05-14. Show hinted it was a sexual act involving food and oil based paint. Fans quickly searched the internet for a definition, but since it was a made up word, no definition exists. "Flarpy Blunderguff" quickly trended on social media sites such as Twitter and Facebook.

"I'm going to tell you but first I have to explain in explicit, sexually inappropriate detail what a flarpy blunderguff is." -Penelope Garcia

flarpy blunderguff by C.M.fan January 23, 2014

bumder

Derogatory term for a homosexual male, a cross between the terms 'bender' and 'bummer.' Made popular by E4 comedy 'The Inbetweeners.'

1. (Original Context)
Neil's dad: Neil! What the hell is going on?! Oh! This place smells like a brewery, and not a nice one. Jay, there's always trouble when you're around, but Will I'm especially surprised at you. I'm so sorry, Steve.
Will: Oh, PISS OFF!
Neil's dad: What? Don't talk to me like that in my own house!
Will: Oh, I'm so sorry. My manners. Piss off PLEASE!
Neil's dad: I've had enough of your lip.
Will: Oh you'd like my lip wouldn't you... right round your bell end, if Mr Chippy doesn't get there first! What's he gonna knock up? A closet for you to hide in? You BUMDER!

2. (Everyday use)
"Oi mate, what's with the earring/pink shirt/George Michael CD/(whatever)? You a bumder or something?"

bumder by Shit in your mum's cunt January 9, 2013

Dilisio blunder 

When one makes a mistake on the opening move of a board game and will not be able to win the game as a result. This is usually said in jest as in "I see you're placing the settlement on a 10 stone, that'll prove to be a Delisio blunder" (Catan) but can be serious "You bid 18 victory points to be the first player?!? On turn one!?! What a Dilisio blunder!" (Five Tribes). This phrase was coined during a Dice Tower Top Ten list posted on October 15, 2020.

Do you know that you just pulled a Dilisio blunder?

I'm just trying to avoid the Dilisio blunder here.

Dilisio blunder by BCS0015 October 15, 2020