If the system gets jammed, credit will become scarce and market interest rates will rise and the economy may become jammed too.

ECONOMIST: CSI: credit crunch | The

Over the course of a couple of weeks, Code Red jammed numerous sites and caused headaches for system administrators around the globe.

CNN: Top Technology Stories for 2001

Cows are also jammed together in enormous pens, many of them sick from feed that violates a digestive system built for grass.

NEWYORKER: Food, Inc.