What does shagadelic mean?

"Shagadelic" is a slang term that means "groovy", "cool", or "fantastic". It's a word that emerged in the 1960s, specifically from the popular 1968 film "The Thomas Crown Affair", where the character Faye Dunaway utters the phrase "Oh, that's shagadelic, baby!".

It's a playful and humorous way to express excitement and appreciation for something considered stylish, trendy, or simply awesome. It's often used in reference to things from the 1960s and 1970s, like music, fashion, or culture.