pre·game 
(prēgām′)
(prēgām′)adj.
Of or relating to the period of time before an athletic competition.
n.
A party or other social gathering that occurs before an athletic competition: We went to the pregame and ate burgers.
v. pre·gamed, pre·gam·ing, pre·games
Slang
Slang
v.tr.
To drink alcoholic beverages before (an event or social gathering): We pregamed the party.
v.intr.
To drink alcoholic beverages before an event or social gathering.