drool-proof paper = D = drop-ins

drop on the floor vt.

To react to an error condition by silently discarding messages or other valuable data. "The gateway ran out of memory, so it just started dropping packets on the floor." Also frequently used of faulty mail and netnews relay sites that lose messages. See also black hole, bit bucket.

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