The ERD or Ebert'sche Ravestick Density is an index and a revolutionary new way to rate the quality of music festivals. Developed by the renowned festival expert Dr. Ebert, this index measures the density of "Ravesticks" in front of the stages at a festival. A Ravestick is a mysterious and rare object that is said to appear only at the most exceptional festivals. Ravesticks are made by the attendees of the festival, so they bring additional art to the festival. It is believed that the more Ravesticks that are present at a festival, the better the overall quality of the event.

To calculate the Ebert'sche Ravestick Density, festival organizers simply need to count the number of Ravesticks in front of each stage and divide that number by the total length of the stage area. The resulting number is the festival's Ebert'sche Ravestick Density score, which can be used to compare the quality of different festivals and help music fans decide which ones to attend.

So if you want to experience the most epic and unforgettable festivals around, make sure to check the Ebert'sche Ravestick Density score before you buy your tickets!
Oh wow this festival is truely magical. The ERD is really high.
by LudoE December 31, 2022
Get the ERD mug.
Poor billy suffers from ERD

Jack was acting like he had ERD

You are so stupid I might think you had ERD
by Brost March 4, 2017
Get the ERD mug.
Stands for Emotional Retarded Dude, in other words EMO.
Can be used when people act EMO, then you'll see people saying like 'YOU FUCKING ERD'

If you don't want to be called an ERD then don't act EMO on the net. We don't want to hear your EMO Lifestory while we play WoW or CS, we are here to chill out and play a game.
by NeverB July 13, 2008
Get the ERD mug.
a fat fuck of a douchbag ass monkey who loves himself and his stats more than anything in this world because he is a terrible yet successful coach on the division III level

2nd meaning: a fat coach with a small penis, wing T guru
you fucking erd

allergic to bees, looks like a dancing retard when trying to avoid one
by fuckinrightdoggy November 11, 2004
Get the erd mug.
To do well at something while putting in the minimum effort - despite copious use of illicit substances - due to a superior intellect.
1) Jamaal erded that exam despite spending half the year becoming better acquainted with the Weather Man.
2) Rakim erded his way to that promotion - Management is so retarded.
by RIP Ungar November 24, 2006
Get the erd mug.
rd) - VERB PHRASE (to erd out)

To throw a tantrum worthy of a 2-year old over something which is either untrue or moot.
"What's wrong with him?"

"Oh he's just erding out over supposedly being on spot call!"
by Crowdsurfer February 7, 2010
Get the Erd mug.
an term used for someone that is half nerd. they are know for half a nerd if they are not smart but they love scifi like star trek or star wars
John: man, ever since Jim got into star trek he became a nerd.
Kyle: Jims bot a nerd because he fails all of his classes.
John: so he is a erd then
by weirdkevin August 13, 2008
Get the Erd mug.