be all brawn and no brain(s)

To have great power or physical strength but lack mental acuity or intelligence. He may have been a good football player in high school, but he was all brawn and no brains, so he didn't get into any colleges.

Common Names:

Name	Pronounced	Usage
Vladislav	vlah-dee-SLAHF (Russian)	Russian, Czech, Slovak, Slovene, Bulgarian, Serbian, Croatian, Medieval Slavic
Aslanbek	-	Chechen, Ossetian, Circassian
Scott	[skɔt]
Priscilla	[pri'silə]
Vasylyna	-	Ukrainian
Giosetta	jo-ZET-tah	Italian