Definitions by Paxarcanum

Rapid Unscheduled Disassembly 

"RUD" for short. In high-power hobby rocketry, an unforeseen event usually attributed to an exploding rocket motor that send pieces of the rocket in every direction, quickly.

That rocket just suffered a "Rapid Unscheduled Disassembly"... DUCK

Rapid Unscheduled Disassembly by Paxarcanum May 22, 2011