The story
Compound of boomer (“elderly or out-of-touch person”) + shooter, alluding to the old age of the games or the people who typically play them.
Etymology from Wiktionary, CC BY-SA 4.0.
boomer shooter
Today it means: A first-person shooter of the kind popular in the 1990s, characterized by fast-paced action and movement, point shooting, and simple graphics. Full definition →