RL = R = robocanceller

roach vt.

[Bell Labs] To destroy, esp. of a data structure. Hardware gets toasted or fried, software gets roached. Probably derived from '70s and '80s drug slang; marijuana smokers used `roach' to refer to the unsmokable remnant of a joint, and to `roach' a joint was therefore to destroy it.

--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.