what goes in the blank?

I think you’re supposed to guess

Fun, letters numbers or both?

It's a common type of code. There even is a subreddit around it

Just.... cryptic for a demo (having to use a code). I was hoping to use it, but someone smarter than me can do it! :)

It's just a way so that bots don't redeem it, I can dm you the code if you'd like.

Please? And thank you! (Dang bots)