A place one goes after performing an embarrassing or dishonorable act.
Such a disgraceful event may include kissing eight members of the same rugby team within 4 days or dropping a religious ornament on a balcony.
The length of time spent in the shame cave may depend on the prosecutor, who can be said to be in the blame cave.
Goose: "As if you've cheated on your girlfriend, you are so in the shame cave!"
Maverick: "I'm not the only one who homewrecked myself by sharking, get out of your righteous blame cave!"