A bull is someone who believes prices will go up. A bear is someone who believes prices will go down.
It's a trading strategy of buying a cryptocurrency after its price has dropped, hoping it will go back up.
Diamond Hands means you hold your crypto through big price drops. Paper Hands means you sell it quickly out of fear.
The feeling that you need to buy a cryptocurrency quickly because its price is rising.
It’s a term for negative rumors or news that can cause people to sell their crypto.