Kill the floor easter egg

I know it was a running gag for quite a long time, and I haven't seen if it was asked already, but an easter egg in a future map where you actually have to kill the floor (and get an achievement) to unlock a secret place in said map would be funny, in my opinion.

I haven't thought much about it. Tell me people, how do you think we could get the achievement ''Kill the floor''?

Kill the floor easter egg