Any small dog who barks rapidly with a machine-gun-like delivery "yapyapyapyapyapyap!"
I was walking down the street when suddenly this little yapdog comes charging out of the bushes at me, like he's actually going to bite my ankle or something!
the word yakdog is used to refer to the first person to vomit during a drinking session. The first person to vomit becomes the yakdog and remains the yakdog for the rest of the night/ drinking session.
"dude, brian was the yakdog last night, lasted about an hour before he yaked, talk about a fuckingcadbury.
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?"