First of all the aforementioned scene from The History Boys, where Richard Griffiths' Hector is talking about a student's relationship with the school secretary, and over-romanticising it as is his way. Mrs Lintott cuts to the chase as only Frances de la Tour can:
I'd have said he was cunt-struck. You should like that Hector, it's a compound adjective.This, ladies and gents, is why Alan Bennett is a National Treasure.
But my all-time favourite comes from a rather less literary source: The otherwise awful film Blade Trinity in which Ryan Reynolds (having acquired huge muscles and a beard in the mistaken belief that it makes him look less gay) taunts Parker Posey with:
You cock-juggling thundercunt!Wahey! As if the cock-juggling bit isn't good enough (She's such a big ho! She juggles cocks!) we have "thundercunt," which is so brilliant you ignore the fact it doesn't actually mean anything. In fact the whole thing is such gibberish it's a strange kind of genius.