A person who can bat either as a right-hander or a left-hander.(noun)
A person who engages in sex with persons both male and female.(noun)
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Use "switch-hitter" in a sentence
"Chipper is already the only switch-hitter in baseball history to have a career batting average of at least .300 with at least 400 home runs."
"The switch-hitter has struggled badly against right-handed pitching, hitting from the left side of the plate."
"He allowed Berkman -- a switch-hitter whose performance from the right side has diminished considerably in recent years -- to bat against lefties in both the sixth and eighth innings."