RhymeZone: gadling definitions

Definitions of gadling:

noun: (obsolete) A companion in arms, fellow, comrade.
noun: A roving vagabond; one who roams
noun: A man of humble condition; a fellow; a low fellow; lowborn; originally comrade or companion, in a good sense, but later used in reproach
noun: A spike on a gauntlet; a gad.

(Definitions from Wiktionary)