straightsplain verb1 •(informal, disapproving) To explain LGBT issues, people or behavior to someone who is not of a heterosexual orientation (i.e. an LGBT individual) in a condescending manner, presuming the listener's inferior understanding.And now, the plebiscite is dead. And hopefully so is the straightsplaining. — 2016 formsstraightsplained · straightsplaining · straightsplains