Proper noun
Clavin (plural Clavins)
A surname from Irish.
As I can assure you from personal experience, reading Mark Forsyth’s A Short History of Drunkenness will make you the Cliff Clavin of your friend circle, and perhaps make you rethink all of that literature and history decorating your daily life. Source: Internet
Ratzenberger is best remembered as know-it-all postman Cliff Clavin from "Cheers," or maybe his numerous voice roles in Pixar movies. Source: Internet
For some major '80s nostalgia, check out this classic scene when know-it-all mail carrier Cliff Clavin kills it on — until the final question. Source: Internet
He lives with his mother Esther Clavin ( Frances Sternhagen ) in first the family house and later an apartment. Source: Internet