Cheech: “Hey man, look at this car made out of weed!” / Chong: “Oh cool beans, man!”
1985,Marlene Fanta Shyer,Grandpa Ritz and the Luscious Lovelies, New York, N.Y.:Scribner, ISBN 978-0-684-18408-1, page 30:
‘It’s cool beans!’ That’s what Betsy always says when she thinks something is fantastic, and I couldn’t help wondering what she’d say if she could see me now.