Commonly the result of doo-doo butter, a doo stain is the result of improper wiping after defecating. Typically the doo stain is immediately apparent in undergarments that come into contact with the rectal area.

v. collectively or individually finding someone/something to blame for a problem, as opposed to brainstorming which connotes finding solutions to a problem

n. the act of finding someone/something to blame for a problem

(from a TV ad for HD television)