'honest-to-God' definitions:

Definition of 'honest-to-god'

From: WordNet
adjective
(used informally especially for emphasis); "a real honest-to-god live cowboy"; "had us a high old time"; "went upriver to look at a sure-enough fish wheel" [syn: honest-to-god, honest-to-goodness, old(a), sure- enough(a)]

Synonyms of 'honest-to-God'

From: Moby Thesaurus