The shorter abbreviation of telling someone they are a "Big Dumb Idiot". Usually used online or in texts.
Person 1: Did you spell "helpful" wrong?
Person 2: Yep. Oops. Gotta fix that...
Person 1: You can be such a bdi sometimes...
Person 2: Yep. Oops. Gotta fix that...
Person 1: You can be such a bdi sometimes...
by MacCrow Man March 21, 2020

Acronym for "Ballerina Difficulty Index."
The Ballerina Difficulty Index is a spectrum of difficulty based on the extreme talent it takes for one to become a professional ballerina. The scale ranges from one to ten, with ten being the most difficult. The index was first coined by world renown sailor Jordan W. (surname redacted to protect his innocence).
The Ballerina Difficulty Index is a spectrum of difficulty based on the extreme talent it takes for one to become a professional ballerina. The scale ranges from one to ten, with ten being the most difficult. The index was first coined by world renown sailor Jordan W. (surname redacted to protect his innocence).
"Dudes, the anchoring in Isla Mujeres sucks. Getting a good set is like, difficult. Like 8.3 on the BDI difficult. But after you do it five times, it's like, not that difficult."
by Rob_S May 12, 2018

A relatively easy way to call someone a “big dumb idiot” without them having the slightest clue you’re talking crap about them, making them a total BDI because they’re completely out of the loop.
by Real BDI December 21, 2018

by frenchtiddymomma December 15, 2021

An acronym that stands for "Big Dick Incoming". Used commonly in online games to express impending danger, domination, etc.
by June Saten May 29, 2011

an acronym for "big dumb idiot"
by VD2098 March 22, 2010

by YouKnewWhatThisWas January 24, 2015
