I got some tokens about 4 months ago which are not listed on any exchange yet.
I have about 2-3 types of tokens like this.
There is, high probability that you got shitcoins from airdrop am I right? If you participated in many airdrops in the past, so many tokens will be in your wallet which are worthless, but who knows 🤔 someday few might worth something. Some team members only become active when the market start booming, in a bit to sell off their shitcoins.