At the height of the Bunnymen's popularity, McCulloch earned the nickname "Mac the Mouth" due to a penchant for witty, blunt criticism of artists he deemed inferior, while proclaiming the Bunnymen's superiority. Targets of his observations included Bono of U2 and Julian Cope. More recently, in 2011, McCulloch said of Bono: "Had he been in Liverpool, he would have been laughed out of the place. U2 have never been liked in Liverpool. We know a fake when we see one." McCulloch said that during the early 1980s, Bono told him the Bunnymen could break America but only if they toured there for three months. McCulloch said: "Three months? I can't spend three minutes in Birkenhead without going daft, let alone America."