Captain Crunch

Synonyms

Cap'n Crunch

1. <person> ("Cap'n Crunch") An early 1970s hacker/phreaker/phacker who used a free whistle included with "Cap'n Crunch" breakfast cereal to fake pay phone system tones and make large quantities of free phone calls. Also alludes to "crunch".

http://well.com/user/crunch/.

2. (After the above) wardialer.

3. Reportedly, a program which crashes a computer by overloading the interrupt stack.