Anyone can mash potatoes
Not knowing how to use a coathanger...
A golfer goes "damn" and a skydiver goes "damn" .
To get to the other side.
You can mash potatoes, but you can't pee soup. (sorry sorry. Really. I've loved this joke since I was... oh.. six...)
Everybody can chop pork but nobody can pea soup.
I've never paid $50 to have a potato on my face.
Signing the legal guardian paperwork
If it ends up on your wall, you're probably retarded.
Guacamole.