A grammatical intensifier, often used in describing something positive. (Mostly in idioms like good old, big old and little old, any old and some old.)
(Informal) Real; actual
Find another word for honest-to-god. In this page you can discover 3 synonyms, antonyms, idiomatic expressions, and related words for honest-to-god, like: honest-to-goodness, old and sure-enough.