A term used similarly to Friend of Dorothy, a Friend of Mara is a code word used to describe someone in the LGBTQ+ community. The name "Mara" comes from the 2018 She-Ra reboot.

Friends of Mara is referring to any love couple that is part of the LGBTQ+ community.

"Friend of Mara" comes from the TV show "She-Ra and the Princesses of Power"

While it is used as a password to unlock certain holograms and such in the show, it is also slang for being a member of the queer community within the fandom.

Queers (mostly lesbians) ask if you are a friend of mara when they want to know if you are queer as well.
Long time ago they used 'friends of Dorothy' but the crew-ra brought this back again:)

a she-ra 2018 reboot fan

it’s used when a sapphic wants to know if you’re a lesbian/sapphic or not. it’s also a she ra reference.