"Toxic Twins, no doubt. Can't go wrong with Aerosmith"
"Actually, I think you can. I'm pretty sure that's how Steven & Joe got that nickname"
"well, the Toxic Twins are clean now"
"so are the Terror Twins. Havn't you read 'The Heroine Diaries'?"
"well, fine, the Terror Twins then!"
"you had the right answer the first time."
Two individuals who are best friends or extremely close but cause chaos in each others lives. Usually used to describe two individuals in a rock/metal/punk band, and usually the lead singer and lead guitarist.
Ben Bruce once set Danny Worsnop's favorite cowboy boots on fire because he was mad at Danny. They didn't talk for six months until Ben got drunk and confessed, and now they're back to causing trouble together.