Thread:Jallybwan/@comment-31680260-20171027221517/@comment-31680260-20171104003315

Cupcakeaj2 wrote: There has to be an Ouija board somewhere. A Ouija board*

It's stupid, but the a/an difference is based on pronunciation, not spelling. Since Ouija is pronounced "wee-ja" (and often misspelled that way), you would say "a Ouija board".