Fans of the rock band AC/DC have been left gobsmacked by an old claim about what the band's name really stands for reemerged on social media ...

As a core member of the AC/DC engine room, Malcolm Young concentrated ... Young used so heavily, but, more importantly, notice the timing of the chord changes in bars 2 and 3.

Nobody has done more with a handful of basic blues chords and winking sexual innuendo than AC/DC over the past 40 years. From their scrappy beginnings in Sydney to their mega-platinum world ...