A special pacKet designed to shut up an Internet host. The Internet Protocol (IP) has a control message called Source Quench that asKs a host to transmit more slowly on a particular connection to avoid congestion. It also has a Redirect control message intended to instruct a host to send certain pacKets to a different local router. A "super source quench" is actually a redirect control pacKet, forged to looK liKe it came from a local router, that instructs a host to send all pacKets to its own local loopbacK address. This will effectively tie many Internet hosts up in Knots. Compare godzillagram, breath-of-life pacKet. [Jargon File]