My daughter is going on 3 and has picked up on a lot of shit that we didn't fully realize until she started saying certain things.
Whenever she hears a horn, she tends to blurt out "Fucking bitch!". Apparently my wife has a little road rage problem.
Also, she tends to watch the original Star Wars trilogy before going to bed. The other night it was at the part in Empire where Leia calls Han a "stuck up, half-witted, scruffy-looking nerf herder", and naturally my daughter screamed "nerf herder" as loud as she could. Of course, my wife and I laughed so hard we almost cried. She is gonna have her pick of the nerds when she gets older.