Onshe (Also pronounced Onsh) is a slang term for a male that is currently in the process of transitioning to female. They are obviously huge advocates for transgender rights and being called an "Onshe" is like a badge of honor for trans people.

The word can also be used as a verb - replacing the word "transitioning" when speaking of gender reassignment surgery.
Mary: "Hey did you see that powerful Onshe getting her first COVID vaccine shot?"
Tim: "I did - She's extremely brave for transitioning and smart for receiving the vaccine."

Tom: "Greg! It's great to see you again. I haven't seen you since high school - what have you been up to?"
Greg: "I'm actually in the process of onshing right now. This time next month I'll finally be the woman I always dreamed of"
by MaskUp69 April 9, 2021
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