The effect is this: You may have a plan in place to go out for the evening with a bunch of dudes and you will be guaranteed of having a fun time with some laughs. But with the addition of just one dude, "Rogers", the evening gets redonkulously off the hook. Next thing you know your underwear is flying out the window, girls are doing things that you have only read about in a dirty magazine, and you are hammered drunk.
Dude 2: Big time, but "Rogers" is meeting us.
Dude 1: Oh Shit! Every time he is with us, I wind up hamboned with some girls thong on my head again!!! That's "The Rogers Effect"!!! It scare me.