Des Moines Surprise 

To surprise a girl who's giving you head by peeing. Extra points if she's deep throating you.

I timed my Des Moines Surprise so well that she will never speak to me again, though she went away well hydrated.

Des Moines Surprise by Superscope March 1, 2008

Des Moines Surprise 

When reciving a blumpie, after delivering the topeka destroyer, blumpee puts a finger in the ass of blumper(thus completing the hat trick where blumper has a mouthfull of cock, a nosefull of shit, a back covered in vomit and a assfull of thumb).

I believe that I am ready for the German Porn Olympics because I have pulled off a Des Moines Surprise,

Des Moines Surprise by decay 66 April 9, 2003

Des Moines Surprise 

word Kansas Hard Lemonade

It does one well to follow a Des Moines Surprise and a Topeka Destroyer with some nice Kansas Hard Lemonade.

Des Moines Surprise by Ted Lynn Smith August 8, 2003