Similar to Crop Dusting, Crop Spraying is when one passes gas while walking or running but accidentally expelling excrement as well through one's trousers.
Brad: "I was going to crop dust my little nephew when he was bending over to pet the dog but I accidentally ended up crop spraying them and coating them both with thick diarrhea."
by CATFOOODS January 18, 2012
Crop spraying - explosive diarrhoea in which one decorates the toilet bowl with fart art in much the same way as a farmer sprays dung onto his field
Doctor to patient: "ah yes, its Mr Smith isnt it? So how are the bowels today, are we crop spraying or cable laying?"
by Martin Duxon July 17, 2003
by starnoj October 15, 2009