Definition of "egghead"

Then no one will know whether you are a genuine egghead or not. Besides, completely bald men are more sensual.

1993, Richard Sandomir, The Joy of Baldness: Men with less hair — and the women who love them, page 164

His own image as a bald man - egghead - with glasses aids this perception.

2005, Clare O'Farrell, Michel Foucault, page 1

Contemporaries remembered him, for instance, as an egghead, bald as a billiard ball, and an “obese Napoleon."

2018, Balázs Apor, The Invisible Shining: The Cult of Mátyás Rákosi in Stalinist Hungary, 1945-1956, page 52

But at the top of the "egghead", the blood vessels become pinched and the flow is blocked.

1962, The Pakistan Review - Volume 10, page Page 43

At one point he even lifts his cap to reveal an egghead bald-cap atop white hair and spectacles.

2002, Robert Ross, The Complete Terry Thomas, page 87

Many shave their entire head at the first sign of hair loss, believing that chicks prefer an egghead to a comb-over.

2010, Jena Pincott, Do Gentlemen Really Prefer Blondes?:, page 81

His shoulders were so misshapen they almost met over his sunken chest and they were topped by a pointy egghead, bald but for a few short sproutings of hair.

2015, Christopher Rush, Penelope's Web

Just because some of you eggheads spend half your life in college don't mean you've got any monopoly on good common sense.

1963, Guy McCord [pseudonym; Mack Reynolds], The Common Man‎