shiran_no_ka_(meme)
A meme originating from a scene in Space Adventure Cobra. It involves a character anticipating something happening, another character asking what will happen afterwards, and receiving an ironic response from the first, punctuated by 知らんのか ("You don't know?"). The meme received a lot of attention in social game circles under the format:
"What happens when maintenance ends?"
"You don't know?"
"That's when maintenance begins."