IRB 

Short for "International Rugby Board," the world-governing body of rugby union. The IRB is responsible for international matches, rankings, and keeping team managers in check. Similar to FIFA except it's actually effective, not run by complete idiots and hires competent refs.

If it weren't for the IRB rugby would be a clusterfuck. Just like FIFA.

IRB by Matt..... June 28, 2010

IRB 

Irish Republican Brotherhood. Father of the IRA. Greatest heros of all time, dared to challange an empire and and slowly but shurly won. Unlike those IRA fuck ups who need to step down. This is the 21st Century and peace can be achieved.

IRB kick British ass.

IRB by Red Hot Chili Pepper September 9, 2003

irb 

"i r back" - "I are back", the less grammatically correct way to say "I am back."

The follow-up to brb, "be right back".

Used in IM conversations- or real ones, if your friends are that blind and you're too lazy to speak in complete sentences.

A: Guess what?
B: brb
A: Gah.
- 10 minutes later -
B: irb, what'd you want to tell me?
A: ...crap, I forgot.

irb by i r back lulz August 17, 2009

irbulenem 

Your grip on the physical world loosening, your very existence fading, your body disappearing into the void slowly, making room for those the world is worth. Your mind spiralling chaotically down a worsening depression. The very worst of insanity spreading through your mind to the core, until you can't take it. You will either be led into suicide, or Grim himself will personally handle you.

"He was going through irbulenem. Insanity at its very definition."

irbulenem by DONTFORGETTISPAGHETTI June 2, 2018

irbulenem 

A made-up word from Google Translate attempting "Sandgorse" from Warriors.

From - "Badly Translated Warriors: Part 3!"

Yeah, no one knows what "irbulenem" means.

irbulenem by AceRose May 19, 2018

irbah 

A sweet girl with a kind heart. Don't try to make her angry.

Erni: You're so sweet. You are so Irbah!

irbah by Irbs April 23, 2018

irbulenem 

The true last name of Sandgorse, the worst Warrior Cat father ever.

Sand irbulenem has officially won the 2018 worst cat father award!

irbulenem by LucieMaeLovesYou May 23, 2018