Of considerable worth and desirability, especially within the context of cryptocurrency and other financial products such as stonks. Comes from the phrase, "pamp it", meaning to pump up the price. Alternatively, to say something is pampy means that you could pamper yourself with all that money you get from it.
"Those DeFi APR's are looking pampy right now!"
"Have you seen the DXY? I bet Bitcoin be lookin' pampy in a minute."