the act of using surrounding noises to strategically defecate in a public restroom. taken from Tim Robbins' escape from the fictitious "Shawshank Prison," wherein he bludgeones a large sewage pipe with a rock, striking the pipe only when the thunder from a lightning bolt is loud enough to mask the noise of his stone as it strikes metal.

(noun) A successful type of theft which results in an acceptable, impressive and rewarding payday for the protagonist.