The equivalent of a Rick Roll on YouTube, but with a Justin Bieber video, instead of Rick Astley.
Can also happen on torrent when you think you are downloading a James Bond movie called "Never Say Never" and then find out it's a Justin Bieber movie.
A deceptive fart would be when you are about to fart, and just before the fart leaves your asscheeks, you realize it is in fact Shit. Therefore resulting in you having to clench said bumhole and try to suck the poo up. Can result in failure, where you shit yourself, or excruciating pain.
He just pulled my shirt down and whispered sweet nothings right into my areolas... It wasn't until it was all over that I realized that he was just Beelzebubing my boobies!