Two least favorite phrases:
1) When my boss at work asks: "What are you doing right now?", when he really means there is a new emergency and my life is fixing to be over.
2) When my wife says "You know, I've been thinking..", which means there is another home project she wants done and my life is fixing to be over.
Favorite phrases, in no particular order:
-Are you ready for some football?
-Let's have that ham tonight.
-Dad, can we light up the fire pit? (I love fire)
-HEY!! WATCH THIS!!! (Usually to be followed by someone doing something stupid and extremely funny...)