game on

Interjection

1. Expressing eager anticipation of an event or undertaking, especially a competition of some sort.
   • Former high school sweethearts Dawson and Amanda (James Marsden and Michelle Monaghan) say "game on!" after returning to their small town for the funeral of a friend.2014 August 29, Dann Gire, “Autumn movies get serious and scary with dramas and more”, in Chicago Daily Herald
   • “We need others to see this and say, 'Game on,' ” he added. “We need places like Los Angeles, like San Francisco and New York, to step up.”2015 12/15/2015, Matt Richtel, “San Diego Vows to Move Entirely to Renewable Energy in 20 Years”, in New York Times

Adjective

game on (not comparable)

1. Ready for the beginning or escalation of a project or competition.
   • Like I said, China is game on if India wants to up the ante.2014 September 9, Ankit Panda, “New Delhi Will Recognize 'One China' When Beijing Recognizes 'One India'”, in The Diplomat
   • BHP Billiton chief executive Andrew Mackenzie has declared the Olympic Dam expansion is “game on” but admits there are technical and manufacturing hurdles that must be worked out before final approval is given to the giant project.2015 June 12, Scott Murdoch, “BHP says Olympic Dam expansion is 'game on'”, in The Australian

Verb

game on (third-person singular simple present games on, present participle gaming on, simple past and past participle gamed on)

1. (slang, transitive, African-American Vernacular) To take advantage of (someone) through manipulation and deceit.
   • Be careful of him, he'll game on you in a heartbeat.