Fuck is a staple. Shit is strong. Cunt is what retard bogans say. Nigger was voted as one of the worst words, I don't use that because I don't like racism. I prefer to say Niggajew because that's just fun. Retard is pretty mean only if there are intellectually disabled people like elz reading this forum, it's probably a safe bet there are as half the actual members are.

Then you can always mix them up or insert them to words. Eg. Fucktard, fuckwit, shitfuck etc....