tailgating

1. gerundparticiplepresentpresent participle and gerund of tailgate

plural tailgatings

1. uncountableusuallyThe act of driving dangerously close behind another vehicle.

   Tailgating is the most common cause of rear-end collisions.

2. uncountableusuallyA tailgate party (social event held on and around the open tailgate of a vehicle)

   1 more example

   On his first encounter with tailgating in 2006, he was flabbergasted at the way rival fans mixed peaceably together at the parties. A Chicago Bears fan, he was warmly welcomed into a group of Arizona Cardinals fans and fed. "I was shocked and slightly worried. I thought they were going to poison me. It was just so odd."

   2014 August 16, BBC News, Why have tailgate parties not spread to the UK?

3. uncountableusuallyThe act of inappropriately gaining entry into a restricted area, past a checkpoint, by tagging along behind another person who is authorized.

   Synonyms: piggybacking

4. uncountableusuallybusinessSynonym of front running.

   Synonyms: front running