I dont understand these copy and paste comments I see everywhere

Ever since I transfered to tiktok I learned new things.

1.They have their own humour and you need to be smart enough to understand it.

2.The comments and emoji uses are unique.

But one thing I dont understand is these dumb copy n paste comments. like wth is "Hilarious Video, mate!😂😂 got a good laugh out of me! Even made the wife chuckle! You could even call it skibidi as the kids say these days! Cheers from the UK 🇬🇧💪😁"

someone explain please