2. Because undeclared bool variables usually default to false: A word used as an antonym for cool; As in not cool; can be used as a noun for an imaginary substance of very uncoolness.
What a load of boolshit!
Holy buckets of bool! That hurt!
Don't drown in a pool of your own bool.
Often said in Hull and Yorkshire.
"I booled my bike all the way up the street because my chain came off"