Joshua has 5 tattoos and counting, and his dad doesn't approve. Every time he gets some new ink, he shows his dad and films the disappointed reaction. Aw, geez.
To be fair, maybe the dad doesn't hate tattoos—he could just be right that his son's tattoos are actually "ugly" and "so bad." Unfortunately, the tattoos themselves don't make an appearance in the video, so all we know is that none of them were terrible enough to get Josh disinvited from Christmas.