pie-eyed means to be intoxicated, derives it's name from the dialated pupils that people get on certain substances, pupils as wide as pies, in the hippy "jam band" scene being pie-eyed usually refers to being intoxicated on lsd, mushrooms, ecstacy, molly, or char
A term used to describe how amazingly stoned you feel. With Pukka pies being a 'baked' product, pukka meaning exceptionally strong and prime cannabis and pie-eyed being the way someone severely stoned's eyes look.