Term for a person who does not know when to cross in
traffic, or a person who casually walks in front of a moving vehicle with little or no concern.
Origin: A racist joke.
Q - What's the difference between a black person and a squirrel?
A - A squirrel knows when not to cross in
traffic.
Note: Contrary to the origin of the joke, a squirrel can be a person of any race, sex,
religion, etc.