memes

That's a tell that the obviously fake joke is fake, but could just as easily be the result of a photoshop or a gag with a prop made to look like that where someone just strikes a funny pose with a straw tucked into the collar.

If the letters are fucked up that's more a tell that AI is garbling stuff up, although that still doesn't rule out a photoshop using an AI step at the end to try to smooth the bits together. If the background characters are fucked up, however, that would be a tell that the whole thing was summoned from nothing.

Looking closely at the original, I think this was either someone with a transparent jacket (potentially dyed in places) and the graphic of this (or something similar) printed on the inside lining as just a silly design, or it was a photoshop working off someone in a transparent plastic jacket that at some point may been hit with a low-denoise AI inpaint to try to merge the edits in. The logo in particular shows artifacting around it that suggests it was pasted into the image. The full image resolution doesn't line up with the raw output of any generator I know of (it's too short and a weird aspect ratio, so this was cropped from something bigger), which suggests that if AI was used it was done piecemeal with inpainting on an edited photo someone took or found.