Caves and Cliffs

A double entendre, may refer to either;

A.) Minecraft update 1.18 "Caves and Cliffs", or

B.) The sexual act of dragging one's tongue from a man's butthole continuously to the glans of his penis during intercourse. May be used to sensually transition between types of oral sex, such as a rim- and blowjob in this case.

John: Derek and I recently tried that new 'Caves and Cliffs' thing together!

Tom: You mean the new Minecraft update right? You mean 'played Minecraft together', right?

John: . . .