#2 "You Can't See Me"
John Cena has been using this catchphrase since his time in WWE. At first, it really suited his Doctor of Thuganomics character who was a heel and didn't care about anyone else, but ever since he turned babyface, this catchphrase didn't seem to fit with his character.
The catchphrase worked because Cena was a heel when he invented it, but he kept it even after turning face. If we go in the literal sense, it doesn't make any sense as his gimmick has nothing to do with being an invisible man, but it is one of the reasons why people recognize him and why we see so many kids doing the gesture in a WWE show.
The catchphrase has become stale now and people have started using to troll him in social media by making memes and videos, but Cena doesn't seem to mind it as he just embraces all those heat by doing more of it. Whatever people might think about it, it is massively over with fans. Add the hand across the face and you will get possibly the most popular gesture of the modern era.