In simple terms, "Go In The Tank" is an internet slang term used to describe when someone performs poorly or fails at a particular task or activity. It implies that the person's performance has significantly declined or that they are experiencing a period of struggle or lack of success.
Examples:
1. After leading the game for the first half, John's basketball skills suddenly went in the tank, and he missed several crucial shots.
2. Sarah's grades have been going in the tank lately. She used to be an A-student, but now she's barely passing her exams.
Related slang around this usage includes 30-rack and 63rd.
