scribble

To modify a data structure in a random and unintentionally

destructive way. "Bletch! Somebody's disk-compactor program

went berserk and scribbled on the i-node table." "It was

working fine until one of the allocation routines scribbled on

low core." Synonymous with trash; compare mung, which

conveys a bit more intention, and mangle, which is more

violent and final.

[Jargon File]