No idea what that is. ChatGPT says it is:
“An “orchid corsage” is when someone secretly tapes a flower to your chest, but instead of petals, it’s made of tiny underwear, and every time someone smells it, they get a whiff of last night’s questionable decisions.”

Neither the standard definition nor @ragingloli ‘s.

Twice that I recall. Maid of honor and was given one to wear as a chaperone at a high school prom.

I gave my date an orchid wrist corsage before the Senior Prom in high school.