drop on the floor
= D =
[prob. by analogy with drop-outs]
Spurious characters appearing on a terminal or console as a result
of line noise or a system malfunction of some sort. Esp. used
when these are interspersed with one's own typed input. Compare
drop-outs, sense 2.
--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.