Top Definition
The belief that bisexual, omnisexual and pansexual identities and behaviors are inferior to monosexuality, or that any identity beyond monosexuality does not exist.

Any speech or behavior that is biased against people beyond a monosexual identity.
Monosexism claims that a person can only be gay or straight, and that anyone who is not is either lying or confused.
#bi #bisexual #bisexuality #gay #straight #lesbain #homosexual #heterosexual #omnisexual #pansexual
by RangerTom September 21, 2008
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