For all of you that say "Cheesy" doesn't exist, or that it is the battle cry of the unprepared...shame on you. It does exist, and the purveyors of cheese are the ones usually denying its existence the loudest!
I define cheese as doing something not in the spirit of the game....tilting the odds your way outside of the rules or cheating. There is a post just below this one, where the poster asks for your opinions on re-posing figures to make them less targettable. To me, THAT is cheesy.
Taking a tough list that remains legal, that is fair. Every list is beatable, and playing so many games of Apocalypse has redefined my feelings about what is fair and what is not, what is beatable and what is not. Cheesy is doing something outside the boundaries of normal play to tip the balance your way. We all know players like this, the kind who will pick-up their dice and claim extra hits or wounds before they can properly be ascertained by all involved. The kind that deliberately mis-use or mis-read rules to favour themselves.
I think for me, it has been a long, long time since i have levelled the Cheese tag at a player because he had a tough list....and even then, it was usually when i saw a veteran placing a game-winning collection of models on the table, AFTER seeing what his newb opponent had......and we've all seen that happen too, right?
For me, cheese is more akin to cheat these days.