A blargablarg is any device used to carry a child, or in some cases midget(s) or dwarf(s). These devices usually consist of a backpack like design in which the smaller person is inserted and carried upon the body of a larger person. These devices were originally developed by Native Americans to carry their papoose (Algonquian for "Child") leading many of the white-man to mistakenly refer to the carrier as a papoose.
That crying baby is annoying me so much I think I might tear the blargablarg right off the mother and smash it against a tree.
That lady with the blargablarg freaked me out, she turned around and I thought I was looking at Quato from Total Recall for a second!
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.