Honest-to-god Definition

adjective

(attributive only) Real, true, actual.

He's an honest-to-God saint; I don't know what I would do without him!

Wiktionary

Alternative form of honest-to-God.

Wiktionary

Synonyms:

adverb

Alternative form of honest to God.

She is honest-to-God brilliant.

Wiktionary

Honest; truly, really; used to emphasize that a statement is true.

Honest to God, I thought you already knew!

Wiktionary

Truly, really.

She is honest to God brilliant.

Wiktionary

Origin of Honest-to-god

Compare swear to God. Originally used as a sentence adverb or interjection, modifying entire clauses or utterances; honest itself is used this way, as in “Honest, I had no idea!” (meaning “I'm telling the truth, I had no idea!”).

From Wiktionary
See "honest to God".

From Wiktionary