RhymeZone: lighty definitions

Definitions of Lighty:

name: A surname (common: 1 in 100000 families; popularity rank in the U.S.: #18599)

noun: (South Africa, slang) A young man; a boy.
noun: A surname.
adverb: (obsolete) Alternative form of lightly; however, more often a misspelling of lightly. [In a light manner.]

(Definitions from Wiktionary)