Redwolf wrote:
https://www.boredpanda.com/erin-go-wut-real-life-irish-tattoos-that-make-us-cringe/
Quote:
The Irish word “aon” can have a couple of different meanings. Depending on context, it can mean “one” or “any.” But it NEVER means “no.”
"Never" is a bit strong

As a reply to the question "An bhfuil aon imní agat?" the answer might be simply "Aon imní." with the meaning "No worry."
Quote:
Erin go bragh
Erin go bragh is a well established anglicized version of Éirinn go brách (or ... bráth, as spelled in 18th c.)
It isn't Gaeilge but it isn't wrong at all to use this phrase.