Where a guy tells his woman that she can give him a snowball kiss after he cums in her mouth, but instead he covers her mouth and punches her in the stomach to make her swallow, and then runs away.
Jenny is so mad, she wanted to snowball me, but I gave her a snowball's chance in hell instead.
"That's a great idea to solve the political crisis in Mali. It seems adapted to the context, and is based on discussions with people. But, we are the United Nations, so good ideas have a snowball's chance in hell of surviving."
The chance a snowball has before it is obliterated by the fire and brimstone of hell, kind of like the chance frosty the snowman has against a military grade flamethrower or popsicle against the heat of the sun
"theres a snowballs chance in hell of that guy jumping that and not breaking every bone in his body"
When a man will search for hours to find something that is laying out in the open on a table. Items are often easily found by a women.
Man: "I have been searching for hours for keys."
Woman: "You mean the ones sitting there on the coffee table?"
Man: "Where?"
Woman: "Right there in the middle of that table."
Man: "oh, must have been Male Pattern Blindness"