Holy shit, Always sunny in Philadelphia just beat out Reno 911 for me.
Everyone knows the iconic line from Die Hard where Bruce Willis yells "Yippie Kay Yay Motherfucker!" What's hilarious is watching Die Hard on network t.v. like USA or TNT where they change the line to "Yippie Kay Yay Mother Falcon!"
So anytime me or one of my friends are pissed in front of kids or at work we exclaim "Mother Falcon!" instead.
Just watched an episode of Always sunny where the gang gets taken hostage. Later in the episode Frank pulls out a gun and yells "Yippie Kay Yay Mother Falcon!"