I'm British and I've literally never heard of this lol. When I was a kid, the Beano was a comic that had Dennis the Menace in it. But not the American Dennis the Menace, a completely different one which weirdly seems to have been invented at the exact same time as the other one purely by coincidence.
The strip first appeared in issue 452, dated 17 March 1951, and on sale from 12 March 1951. It is the longest-running strip in the comic. The idea and name of the character emerged when the comic's editor heard a British music hall song with the chorus "I'm Dennis the Menace from Venice".
Coincidentally, on 12 March 1951, another comic strip named Dennis the Menace debuted in the US. As a result of this, the US series has initially been retitled Dennis for UK audiences, while the British character's appearances are often titled Dennis and Gnasher outside the UK.
I'm British and I've literally never heard of this lol. When I was a kid, the Beano was a comic that had Dennis the Menace in it. But not the American Dennis the Menace, a completely different one which weirdly seems to have been invented at the exact same time as the other one purely by coincidence.