A word commonly used to test to see whether or not someone is under the influence of Marijuana.
Dave suspiciously and rapidly looked side to side as he edged his face closer to the high John. He then looked John straight in the eye and quickly whispered "pickleweasle." John then found himself in a blunder.
When you fart, sneeze, and pee at the same exact time
You take a piss and you feel both a fart and a sneeze coming on and you let it happen. Resulting in piss covered walls and possibly shit yourself. Hence a pickleweeasle has occured.