After making a largebowel movement (without flushing), the person responsible inserts their business card in the pile, so as to inform others of his creation.
I took a massive crap and simply had to leave the calling card...
Tom lifted the seat cover and found a huge log. It was clearly Jordan's, for he left his calling card...
Used as an insult to highlight one's lack of height and the crappiness of one's job. They would be a shelf stacker but they cannot reach and just knock things of instead. Hence the name "ShelfWobbler".
That Richard Evans is a right shelf wobbler! I don't know how he's got a mechanics apprentiship for less than £1 an hour. Ha Ha Ha!
Once you get to know him he is the sweetest person ever even if he looks a little crazy when u look at him, Caring, Ambitious, Brave, Lovely and you are the most lucky person ever if he is your bestfriend