slang Said when one deems someone to be stupid. The "head" is the foam that forms when beer is poured into a glass. It is used here as a pun in reference to one's head, representing their brain or intellect. Oh please, I've seen better heads on nickel beers—you can't believe a word that fool says. I can't believe you're so impressed with her—I've seen better heads on nickel beers, honestly.