The phrase "crazy stuff" refers to things that are strange, unpredictable, or extraordinary. It's used to describe unusual or unexpected events, ideas, or behaviors that might surprise or shock people. Full definition
There's all kinds of crazy stuff going on in this. (firstshowing.net)
Looking for a naughty woman that loves do crazy stuff like I do. (datingonly.net)
Whenever I tried to reasonably explain myself, they would just throw arguments about food processing, insulin, and other crazy stuff in my face. (fitmole.org)