(colloquial, sometimes derogatory) Homosexual. [from 19th c.]
(colloquial, sometimes derogatory) Non-heterosexual or non-cisgender: homosexual, bisexual, asexual, transgender, etc.
(loosely) Pertaining to sexual or gender behaviour or identity which does not conform to conventional heterosexual or cisgender norms, assumptions etc. [from 20th c.]
(dated) Strange, odd or different; whimsical. [from 16th c.]
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From Wiktionary:
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It is already inclusive.
It depends on how you define queer.
Again, I think the intent of the post is positive and inclusive. It’s ok if we just take it at face value.
You learn a lot about a toad when you dissect it but it dies in the process