frogging
[University of Waterloo] v. 1. Partial corruption of a
text file or input stream by some bug or consistent glitch, as
opposed to random events like line noise or media failures. Might
occur, for example, if one bit of each incoming character on a tty
were stuck, so that some characters were correct and others were
not. See terminak for a historical example. 2. By extension,
accidental display of text in a mode where the output device emits
special symbols or mnemonics rather than conventional ASCII. This
often happens, for example, when using a terminal or comm program
on a device like an IBM PC with a special `high-half' character set
and with the bit-parity assumption wrong. A hacker sufficiently
familiar with ASCII bit patterns might be able to read the display
anyway.