Perfect game, also called bowling 300:
Bowling a strike in every frame of a bowling game (10 frames plus two bonus frames, for 12 total). A perfect game scores 300 points: 30 points for each of ten frames. This is the highest single-game score possible, and is the Holy Grail of bowling. Many bowling alleys prominently display the name of any bowler who has bowled a perfect game at that establishment.
Homer Simpson bowled a perfect game (s11e232); Al Bundy did not, but Peg Bundy did (s4e76); Ralph Kramden does not seem to have done so.