what does ROAR stand for?

Factual Questions
1

on an invitation/club flyer.
i know i know this but i am hungover and my brain has gone to mush.
thanks
x

2

Right Of Admission Reserved?

3

I don’t know for sure, but my educated guess is “Regrets Only Are Requested” as opposed to a blanket RSVP.

4

I think Racer1 has it –

Google search: ROAR + right + admission brings up a lot of hits who use that version.

5

Oh…I should’ve read a bit further - at least one site explictly acknowledges that version.

6

So much for my education. Oh, well.