Don't Ask Don't Tell (DADT) Polyamory is a relationship structure in which a partnered person is permitted to have additional relationships on the condition that their partner does not meet the other people involved or know anything about those additional relationships. These additional relationships may be sexual, romantic, queerplatonic, etc. This is not the same as cheating because all people involved are aware of and consent to the possibly of other relationships- but they choose not to learn any details of these other relationships.
One or both of the people in a DADT relationship may have additional partners. If only one partner has additional relationships that is because the other partner chooses to not to have additional relationships.
It is unknown when DADT Polyamory was coined however it has been around since 2010.
The original DADT polyamory flag was coined by Deviantart user NonMonoPrideFlags. It has no confirmed meaning.
The second flag was coined by a user going by Artemis on November 22nd, 2020. The blue represents consent, the pink represents love/attraction, the black represents not wanting to know about the other partners, and the gold represents said other partners.