In the United States, a tailgate party is a social event held on and around the open tailgate of a vehicle. Tailgating often involves consuming beverages and grilling food. Tailgate parties usually occur in the parking lots at stadiums and arenas before, and occasionally after or during, sporting events and rock concerts. People attending such a party are said to be tailgating. Many people participate even if their vehicles do not have tailgates.
Tailgate parties have become popular in the United States as social gatherings events that take place in stadium parking lots before football games. The use of the tailgate party has spread to the pre-game festivities at sporting events of all kinds (e.g. football, basketball and baseball) and is also used at non-sporting events such as weddings and other non-sports-related barbecue gatherings.