An umbrella term for individuals (usually on tumblr) claiming identity with anything beside the standard gay, bi or transgendered sexual identities/orientations. Such extra labels are seemingly made up as a product of those considered to suffer from "Special Snowflake Syndrome" and are only used to garner attention.
Jimmy: Hey Marcus! How'd your date go with Linda last night?

Marcus: Utter shit. I tried complimenting her and told her she was the prettiest woman in the bar, she flips out and goes, "I'm not a woman, I'm a trigendered omnisexual who HAPPENS to be in a female body."

Jimmy: Fucking tumblrsexuals man...
by Karl Av-Ulvene June 29, 2014
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