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cascade: n.

1. A huge volume of spurious error-message output produced by a compiler with poor error recovery. Too frequently, one trivial syntax error (such as a missing ‘)’ or ‘}’) throws the parser out of synch so that much of the remaining program text is interpreted as garbaged or ill-formed.

2. A chain of Usenet followups, each adding some trivial variation or riposte to the text of the previous one, all of which is reproduced in the new message; an include war in which the object is to create a sort of communal graffito.