A Nickname given to the character of Finn Dandridge (the vet) on the TV-show Grey's Anatomy. Based on the idea of adding 'Mc'+description to things concerning Grey's Anatomy's Life - Same as 'McDreamy', 'McSteamy', 'McLife', 'McDog'... etc.
"He's a vet, he's McVet"
by LV2112 June 12, 2008