Could be Flynn, but "In Like FLINT"was the name of a movie back in 1967 starring James Coburn, Lee J. Cobb, and Jean Hale. It was shortly afte that movie hit the theatres that the saying became part of everyday slang. But Flynn is okay too.
ACTUALLY the term comes from Errol Flyn`s womanizing ways. It is said that he could have any woman he spoke to. Thus, if it looked like you were gonna score you were "in like flynn" http://www.inlikeflynn.com/flynn.html
You could always try "working" for ET and making .10 cents per post for every "cut and paste" job that you add to the website!
Not attacking your position or you, just always heard it the Flynn (not Flint) way... http://www.worldwidewords.org/qa/qa-inl1.htm Hey we just hijacked a thread!!!! Sorry OP
Ok --you got me. Thanks for the info, that kind of trivia is handy to have at the bar I hang out at. Sorry to the original poster.