The place where a man keeps all his porn files on the computer. This is usually in the folder of a folder of a folder and the actual video is almost always under a different name to throw wanderers off.
Person#1: Hey, my sister was cleaning up files and deleted my favorite video.
Person#2: Shoulda put it in the fapcave.
Person#2: Shoulda put it in the fapcave.
by dontquoteme123 October 24, 2009