on (one's) honor(redirected from on my honor)
Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia.
on (one's) honor
1. With utmost sincerity; with one's serious promise or oath. Primarily heard in US. On my honor, I swear to you that I did not steal that money! If, on your honor, you promise to behave yourself, I'll let you go to the party with your friends.
2. With a sincere intent (to do something) without being watched or scrutinized; according to the honor system. Primarily heard in US. To save on the cost of employing daytime staff to mind the till, we ask patrons on their honor to leave the correct payment for their items before leaving the shop.