Tribadism or the lesbian act of rubbing two vulvae together (commonly known as scissoring) when practiced in secret by two Muslim lesbians.
The term is inspired from the comment, considered derogatory by some, by British politician Boris Johnson, who described Muslim women wearing burkas as looking like letterboxes. Given the parallels between a woman in a burka being hidden away from society and
lesbianism not being able to be practiced openly in Islamic communities, as well as the colloquial
description of a woman’s vagina as a box, this term to describe this sexual act seems
particularly poignant.