English edit

Etymology edit

Ellipsis of I swear on my life

Adverb edit

on my life (not comparable)

  1. (slang, informal) With all honesty and seriousness; affirmatively.
    If I am driving and I say "Five-O behind us"...and you turn all the way around to look, on my life you're never riding with me again.

Synonyms edit

Translations edit