Quaalude Thunder

One of Frank Zappa's Archetypal American Icon Modules.

From the section "How Did They Manage To Do That?" in the chapter "All About Music" in The Real Frank Zappa Book:

"For example, say I'm talking to Chad Wackerman. I'll tell him, 'The Quaalude Thunder goes here.' That's the shorthand description of a drum fill you hear on certain heavy metal albums - where the guy plays as many notes as he can on all of his thousand tom-toms before he ends with The Big Crash."

Quaaludes are a sedative and hypnotic medication that caught on as a party and club drug starting in the late 1970s during the Disco era.