In the BGT show, a boy, Ned Woodman does a joke as performance. During his performance, he said
Why are people so excited talking dog on Britain's Got Talent.
Amanda Holden has been on it for years.
And they show audiences' happy face of laughing. But I don't know why it's so funny.
What's the meaning of 'has been on it' here?
This is the youtube link of the performance: https://www.youtube.com/watch?v=0qxIyOFkJeY
I listened to the joke in the wrong way and I fixed the content with the help of the comment below. ('spin on it' -> 'has been on it')
Best Answer
Calling an ugly women 'a dog' is an outdated chauvinistic slur. This boy is alluding to this concept. So, the boy is puzzled as to why people are suddenly excited about seeing a talking dog on the talent show when there has been a talking dog on the show for many years in the person of Amanda Holden (hah hah!). He is suggesting that she is a dog and talks. Hence, why is just another talking dog seen as an exciting novelty? I read this as an ironic gag with no malice intended and, thankfully, there are still a few moderate thinkers who would refrain from taking to Twitter to demand he be 'burned at the stake', as they understand it is being said in jest by a child. The fact that he directed it at Amanda Holden would confirm that because clearly she is not 'a dog'.