God....how to even narrow them down....
Well anytime I have to go into my crazy garage, or any such place, I call it "the pit of despair" from the Princess Bride. And when I refer to impregnating my fiance I call it "storming the castle."
Big Lebowski (especially since people call me The Dude sometimes) "The Dude abides." and I call my fiance my "special lady friend." And of course "Do you see what happens when you fuck a stranger in the ass?"
Forgetting Sarah Marshall: "I just went from six to midnight."
Oh god, my fiance and I use this one ALL the time, from I Love You Man: "Totes Magoats"
From Dead Man: "Do you have any tobacco?"
Away We Go: "I will love you even if you get so fat I can't find your vagina."
I could go on, and ON, but to sum up and especially since the movie is coming out this year, The A Team: "I love it when a plan comes together."