An Exclusionist, also known as an Exclus, Exclu, or Reactionary Exclusionist Gatekeeper (REG), is someone who attempts to gatekeep the LGBT community by claiming that certain groups aren't "really" LGBT based on their own definition. The term includes TERFs, TEHMs, truscum, enbyphobes, aphobes, biphobes, mphobes, and D.E.L.E.T.E.
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]