Definitions
1.NounSomething or someone that is shorter than normal."That squirrel is a shortie."
2.NounA short-handed goal."They got a shortie at the start of the third."
3.NounAlternative form of shorty (“child”).
4.NounAlternative form of shorty (“attractive young female”).
5.NounAlternative form of shorty (“girlfriend”).
6.NounShortbread. (Can we add an example for this sense?)
7.AdjectiveShorter than normal, especially of clothing."a shortie gown; a shortie jacket"