Dex was an egghead, not a stallion, and he was bound to be a dud.

Susan Elizabeth Phillips, LADY BE GOOD 

Dex era una testa d'uovo, non uno stallone, ed era destinato ad essere un disastro.

egghead
(ˈɛɡˌhɛd)
NOUN
(pejorative, fam) intellettualoide

egghead
parola: plural eggheads 

SOSTANTIVO NUMERABILE

If you think someone is more interested in ideas and theories than in practical actions you can say they are an egghead.
[informal, disapproval]

The Government was dominated by self-important eggheads.

Sinonimi: expert, genius, guru