1 definition by WelshNationalist

A name of an extremely attractive name given to the best of Welsh people.
The name Osian has historical links to Welsh Independence fighter Owain Glyndŵr and has a historical record of being really good in bed.

FUN FACT: National Osian day is on May 22nd so post the best pictures possible of an Osian you know.
Hayley: “Omg I had the best sex last night!”
Sian: “I can assure you it was nothing compared to an Osian!”
Hayley: “You’re right to be fair, my insides will never heal from what Osian did to me”
by WelshNationalist November 23, 2021
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