Top Definition
When traffic is backed up for miles on a highway, crawling along -- and then suddenly everyone returns to normal high speeds without passing an accident, stalled car, or road construction.
We spent 45 minutes bumper-to-bumper for no reason?!? It must be immaculate congestion.
by JudyDavid August 07, 2009

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.