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Wiktionary
doubledome

alt. (context slang mildly derogatory English) An intellectual; an egghead. n. (context slang mildly derogatory English) An intellectual; an egghead.

Usage examples of "doubledome".

Simpson," Doubledome said, "I'm afraid that's soapy water you're drinking.

Simpson said to Doubledome and Pacemaker, who stood rigid and attentive, "Find a record clerk whose initials are J.