Everybody can chop pork but nobody can pea soup.
The taste.
The phrase I went through a whole box of tissues watching that film. is a good place to start.
You can mash potatoes, but you can't pee soup. (sorry sorry. Really. I've loved this joke since I was... oh.. six...)
Anyone can mash potatoes
Cut a hole in the ice. Put a line of peas around the hole. When the polar bear takes a pea, kick him in the ice hole.
They all want either pees, peace or peas in the middle east.
Everybody loves Putin!
Everybody I don't know. All over the planet I guess.
Anyone can roast beef, but not everyone can pea soup. (As told by my 8yo, who made me laugh with a joke for the first time. Proud dad moment.)
Because one more would have been too farty.
Kermit the frog
They both like to pork.
Because he chopped off the wrong sausage.
You don't cry when chopping your mother-in-law.