Definitions by Eager Beaver Parcel

Jay Walking Coattails 

The act of crossing the street because someone before you has already crossed and caused traffic to stop. In effect, jay walking because someone else already has.

I rode on this guy's Jay Walking Coattails after he jumped in front of traffic and caused a 30 car pile up.

Jay Walking Coattails by Eager Beaver Parcel October 4, 2011