"lefty" in the noun sense
1. left-hander, lefty, southpaw
a person who uses the left hand with greater skill than the right
"their pitcher was a southpaw"
2. left-handed pitcher, left-hander, left hander, lefthander, lefty, southpaw
a baseball pitcher who throws the ball with the left hand
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License