expression
big heads have little wit
Proverb meaning that large, physically imposing people are often slow-witted or lacking in intelligence. Used humorously or critically.
彼は体は大きいけど、大男総身に知恵が回り兼ねって言うからね。
He's big, but as they say, big heads have little wit.
Standard kanji spelling of the proverb.
Variant spelling with かね in kana.
A Japanese proverb. The exact origin is uncertain, but it reflects a traditional folk belief that large people are slow-witted.