butt blunder

the accidental insertion of ones penis into the anal canal of a woman during sexual intercourse .

during their first romantic interlude between gus and sue, gus performed a butt blunder, and needless to say, their session terminated quite abruptly.

butt blunder by dakevster August 22, 2008

Bedtime Blunder 

When one's roommate catches one in midst of a masturbatory act during the nighttime, caused by the fallacious assumption that the roommate will not be awakened by the sounds of shaking bedposts and heavy breathing.

Dude!... my roommate made a bedtime blunder yesterday and woke me up!

Bedtime Blunder by Mr. Canyon September 5, 2006

Dilisio Blunder 

During the setting up phase or first turn of a game (primarily a board game), the player who's turn it is makes an overly aggressive and erroneous turn. The player doesn't recover from the mistake for the remainder of the game. This was named after board game reviewer from Dice Tower.

A player decides to found a civilisation in an arid desert.
Did you see that player's first move, a typical Dilisio Blunder.

Dilisio Blunder by Maverick4986 November 2, 2020

you slumber, you blunder 

A variation of “you snooze you lose” but much more fancy fancy Spansy.

Lily: “Why did you post a picture of me sleeping in class”
Me: “You slumber, you blunder”

you slumber, you blunder by The kool kids February 2, 2022

Facebook Blunder 

When using facebook mobile and attempting to search for someone, accidentally posting their name as your status. Even more embarrassing when it's someone you hardly know.

"I was facebook stalking this girl and when I went back to my wall I'd made a Facebook Blunder"

Facebook Blunder by Hammermeister September 20, 2011

one hit blunder 

(n) a specific type of one hit wonder in which the artist's one and only hit defies all logic and reason

"The Heights" is one of the best examples of a one hit blunder: they are a fake band that performed the bland, generic theme to their low-rated TV show that was cancelled after less than half a season. Despite all this, "How Do You Talk To An Angel" actually spent TWO weeks at #1 in 1992. Wouldn't people have at least tuned in to the show to hear that fantastic theme?!

one hit blunder by BeardedFatass January 7, 2004

chunder blunder 

When you drink too much alcohol and end up throwing up. Often used in a laddish context.

George: Have you seen jack just puked all over Sophies dress
James: What, Chunder Blunder!

chunder blunder by mterry January 25, 2012