1 definition by RitterKreuz

Top Definition
An event or action incurring annoyance, inconvenience, or hassle.
You're really jammin' me up right now.

Having to have to go to downtown Seattle in rush hour was a real jam-up.

Tony was really jammed up by Schmid's use of Nova Gas in Black Ops.
by RitterKreuz April 18, 2011

Mug icon
Buy a Jam-Up mug!