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
IldikÓ	-	Hungarian
Nona (1)	-	Roman Mythology
Amna	-	Arabic
Jezza	JEZ-ə	English (British)
Linnet	li-NET, LIN-ət	English (Rare)
NÚRia	-	Catalan, Portuguese