For me it would be that black people love watermelon and don't swim. Like... I hate watermelon and I don't see my family eat it often. And the swim stereotype makes no damn sense.
Hmm. I think most stereotypes have a good deal of truth behind them. I'm trying to think of one I find ridiculous, but I can't. I guess the really extreme ones like Muslims being terrorists.
It isn't completely pulled from thin air. I read in a health magazine that those of African roots tend to have leaner body composition - more muscle, and less fat. Muscle is dense and therefore having more of it makes you less buoyant while the opposite can be said about those with more fat.
Obviously this doesn't equate to 'All Blacks Can't/Don't Want to Swim', but just a curious piece of information.
White people can't dance
All indians smell of curry
All Black people love watermelon, fried chicken and all black men have huge penises ( they aint wrong but i think its stupid anyways )