A sudden death of a band member (usually the lead singer) that leads to the band's permanent break up. They will decide that the member that died was irreplaceable and thus cannot go on.

Please note that there are plenty of bands, like the Rolling Stones, that carried on after the loss of a bandmate. Sometimes the surviving members form a new band, like how the surviving members of Joy Division reformed as New Order when Ian Curtis killed himself.

Queen didn't disband when Freddie Mercury passed away and John Deacon left, they just changed as a band.

The Doors was kinda this because they released two shitty albums after Jim Morrison died.
Notable band-ending deaths:
John Bonham (Led Zeppelin)
Adam Yauch (Beastie Boys)
Eddie Van Halen (Van Halen)
The Heartbreakers (Tom Petty)
Neil Peart (Rush)
Marc Bolan (T. Rex)
Lemmy (Motorhead)
Jerry Garcia (The Grateful Dead)
Phife Dawg (A Tribe Called Quest)
Jam Master Jay (Run DMC)
Richard Wright (Pink Floyd)
Maurice Gibb (Bee Gees)
Peter Steele (Type O Negative)
Chris Cornell (Audioslave)
Dolores O'Ridoran (Cranberries)
Kurt Cobain (Nirvana)
And most likely... Taylor Hawkins (Foo Fighters)
by popsicleprincess March 31, 2022
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A new minecraft game coming somewhere in the year 2023 where you have to gather resources around a legs end and then fight the poglin invasion on the far northeast. Jeb says it will be the best game to ever exist!
Guy 1: hi, have you played that new brand new game called Minecraft Leg Ends?
Guy 2: it hasn't been released yet you dumbass.
by Fire Axus June 16, 2022
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A new minecraft game coming somewhere in the year 2023 where you have to gather resources around a legs end and then fight the poglin invasion on the far northeast. Jeb says it will be the best game to ever exist!
Guy 1: hi, have you played that new brand new game called Minecraft Leg Ends?
Guy 2: it hasn't been released yet you dumbass!
by Fire Axus June 16, 2022
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To look so immensely attractive that you have the capability to end the entire world and it’s existence.
Fuck, I look so good I could end the world. Hey Evan, am I ending the world?
by WillyWilkos September 6, 2021
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The act of becoming an absolute madlad/madladette. A T0P-tier legend sitting at the T0P 0' ya best-list!
Dude 1: "Damn Dude 2, someone said I'm T0P-ended, tf that mean?"
Dude 2: "Shiii homie!! That's fokken sick! You gotta be a fokken real one eh, to be T0P-ended is a rare honor!"
by w4nkerDaProfessori October 17, 2023
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A cow end is a term used to describe somebody who looks or acts like back end of a cow. It can be used be students to describe their teachers after telling them to fuck off.
Fuck off you cow end.
by Zuko441 December 7, 2016
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