gentleman's agreement
US /ˌdʒen.tl.mənz əˈɡriː.mənt/
UK /ˌdʒen.tl.mənz əˈɡriː.mənt/

1.
君子協定, 口頭協議
an agreement that is not legally binding but is based on the honor of the parties involved
:
•
They reached a gentleman's agreement to share the profits equally.
他們達成了君子協定,平分利潤。
•
The deal was based on a gentleman's agreement, not a written contract.
這筆交易是基於君子協定,而非書面合同。