Top definition
Noun- Any type of deadly substance that lays on the ground. Upon landing in this substance your person will take considerate amount of damage to the toes. (does not necessarily have to be blue)
Guy 1: Hey man watch where your stepping! You almost stepped in that blue yorn!

Guy 2: OMG your right! Thanks for saving my toes!
by Scratchalot April 27, 2009
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