A North Idaho is when you head north until you find a prostitute, ask her to give you a blow job, convince her to do it before she pays you and then cum in her eye and shout "North Idaho!" and run off without paying.
Fool: "Dude, run!!!"
Dude: "Why, fool?"
Fool: "I just North Idaho'd this bitch and her pimp is coming to get me!"
Dude: "Why, fool?"
Fool: "I just North Idaho'd this bitch and her pimp is coming to get me!"
by mike>you May 2, 2008
Cow feices from North Idaho is exteremly smelly and large, much larger and smelly than any cow manure you're used to.
by Louis June 24, 2006