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
Darek	-	Polish
Abioye	-	Western African, Yoruba
Clinton	KLIN-tən	English
Kirke	-	Greek Mythology
Grover	GRO-vər	English
Dee	[di:]