A tattle-tale is a (sort of) righteous person who complains about you every time he catches you doing something you shouldn't do. They are all very annoying.
One day, a tattletale called melvin sneedly caught bob the bully putting a stinkbomb in the teacher's desk to prank him.
He ran to the teacher's office to tell on him. Don't be such a tattletale! screeched bob. Or prepare your a**s later!! Of course he got worse punishment for using a vulagarity. Arrrghh!! Thought bob as he got caned by the teacher. I'm going to get melvin later and punch the daylights out of him! But that's another story.
The end.
A person that feels the need to point out that Photoshop was used on an image, no matter how super cool or hilarious the results may be. The fact that people ALREADY KNOW that the image is OBVIOUSLY Photoshopped does not discourage them one bit. They think this makes them seem smart or computer savvy.
"Dude, no way is that rooster THAT big, it's Photoshopped...!" "No REALLY, sevenfoot roosters aren't real...? I had NO idea, quit being such a Photoshop Tattletale, you're spoiling our fun..."
Do you think I'll be able to do that one day Dad? I'm certain that if you keep trying you will. Time is a taddle-tale son, it'll tell us when it chooses.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"