The phrase "Totes Magotes/Mcgotes" was first used in the 2009 comedy movie, I Love You Man. Totes Magotes/Mcgotes is an awkward way to say "totally" when trying to be cool. Totally, meaning "Of Course"- Urban Dictionary.
See the expression in action in the movie here.
The film I Love You Man follows the story of a friendless Peter Klaven who's engaged to be married and finds himself in the position of having to find a best man for his upcoming wedding. Peter spends some time getting to know the most qualified candidate to overcome the problem of who will be his best man. Read more here.
Sprint debuts a new commercial – “Totes McGotes” (watch it below), featuring two legendary actors James Earl Jones and Malcolm McDowell. Read more at The Huntsville Times.