AC/DC: Big Balls [purchase]
As far as sexual humour goes, there's little more British (or, indeed, Australian) than the good, old-fashioned double entendre, and there are few better purveyors of 'phnarr-phnarr' snickers than AC/DC. The late Bon Scott was a particular reprobate, of course, and this song is a case in point. The 'balls' of which he sings so lustily are parties, of course - why, to what else do you think he could be referring? Really? Well, I'm shocked, shocked I tell you, that your mind should be so mired in the gutter!
Anyway, this isn't the heaviest Angus and co have ever sounded, but they're evidently having a great deal of fun. And you just know that the audible gleam in Bon's eye was there because he was telling not one word of a lie. They really were that big...