An art similar to cock blocking. Where as cock blocking is in front view of the victim, Schangling is somewhat more devious. To sneak over to a girl in a bar or club when the person who was chatting her up,is on a short term absence " smoking , toilet or at the bar". Schangling is an act of espionage carried out from a distance, carried out only at the right time.
How did you get on withthat girl Paul? "No good, she was talking to him when I got back from the toilet, he must of been Schnagling me"
noun: the art of bullshittin, shootin the shit, holding endless, meaningless, conversations that sometimes result in interesting or quizzical points.
John Louis's schnibb-schnobbin helpd him realized certain things within the relativily of his own time frame, given the conditions of the moment, his realizations felt important and meaningful.