musclebrain
Noun
Meaning
(US) A person who actively participates in physical sports, possibly highly skilled in sports, but does not do well in academic activities, like math and science
(US, slang, derogatory) A large, strong, but inept, bumbling, buffoonish or unintelligent man
Source: en.wiktionary.orgSynonyms
jock
athlete
goon
pinhead
dummy
idiot
buffoon
moron
bruiser
dumbbell
birdbrain
dimwit
meathead
dipstick
peabrain