McGee has/had a lot of nicknames throughout the course of the series, most of them from DiNozzo and most of them only once in one specific episode. Here's a small list: When McGee joined the team as a probationary Special Agent, Tony began calling him "Probie" (including versions of "Probie", such as "Probie wan Kenobi" and "Probalicious"). Some of Tony's other nicknames for McGee are: "McGeek", "McBarfbag", "McKill Joy", "McNerd", "McGeekal", (in Witch Hunt (episode)), when McGee told Tony he really must have been three beers short of a 6 pack, Tony's response was that she/Abby must have been referring to his 3 pack) "McFlabby", "McGoogle", "McMuse", "McFlower Power", "McLawyer", "McSneaky", "McFreaky", "McGnome", "McGruff" or "McGoo".