Definition from Wiktionary, the free dictionary
multihomer (not comparable)
- (baseball) Having more than one home run in a single game.
2007 May 18, The Associated Press, “Red Sox Save Their Bullpen as Tavárez Beats the Tigers”, New York Times:
- BREWERS 3, PHILLIES 2 Ben Sheets (4-2) struck out eight in seven and two-thirds innings, and Gabe Gross hit two bases-empty home runs for the first multihomer game of his career to help visiting Milwaukee end a four-game losing streak.