An "exclusionist", also known as an exclu, or Reactionary Exclusionist Gatekeeper (REG), is someone who disagrees with newer sexualities and identities in the LGBT community. For example, an exclusionist may disagree with including asexuality, pansexuality, omnisexuality, non-binary lesbians, and more. Exclusionists commonly disagree with microlabels and labels that are similar to pre-existing labels.
E.C.L.I.P.S.E.
E.C.L.I.P.S.E. (Education, Culture, Language, Intelligence, Preservation, Sexy, Exclusionist) is a term some exclusionists use for the "exclusionist community."
Flags
The flags were coined by Twitter exclusionist @tomnooksfatass.The three main flags used by E.C.L.I.P.S.E. are the eclipse flag, which represents all exclusionists, the solar eclipse flag, which represents man- and masculine-aligned exclusionists, and the lunar eclipse flag, which represents woman- and feminine-aligned exclusionists.[1]