Knowbie

Origin

know + -bie, patterned after newbie, with know replacing new to suggest knowledge.

Full definition of knowbie

Noun

1. (Internet) An experienced Internet user.
• 2005, William Safire, "The Way We Live Now: 6-19-05: On Language; Qualassurepurp", The New York Times, 19 June 2005:Neither newbie or knowbie, I count myself among the silver surfers, those geezers in Dickensian nightshirts who preceded the blogging guys in pajamas.

Antonyms

• newbie