A sour dilly is someone who is being extremely negative or sour to the point that they have similar aspects to that of a sour dill pickle, hence they are a sour dilly.
1) Wow after losing that game Moshe started acting like a real sour dilly.
2) Kim Jong-un and all his bullshit threats don't make him seem strong they just make him seem like a sour dilly
An extremely pale Caucasian with skin so pale you might scream. The sour cream tanned individual reflects light from the sun making them dangerous to be around. It is rumored they are saving the earth from global warming due their ability to reflect sunlight away from earth. Their ghastly, pallid skin will send chills down the spine of the most courageous individuals.