Its arrogance, we think we "punch above our weight", when basically the rest of the world look at us (political & sport wise) as the noisy brat in the corner, who thinks they are "special". (The special relationship with USA, we want special deals from the EU for examples)
Socially, we (generalisations) can't be arsed to learn languages, exported hooligans, export lager louts, live in ex-pat ghettoes, are all covered in tattoos, take all inclusive holidays which give nothing back to the locals, are always tagging on the coat tails of the USA, have a "we had an empire / commonwealth" attitude.
For clarity, I am not saying I agree or that any of these "views" are accurate, but they are perceptions of the British and more exclusively the English !