To use comic material developed by another comedian, attempting to pass it off as your own. Often done without giving the other comedian credit for it, especially on the internet.
To secrete alchohol outside one's home to be consumed away from friends and relatives in secret... often whilst walking the dog or 'going for some fresh air'.
"Casper? Thy's not getten a Kestrel at all - your Judd's told me - yer Mam caught yer ovver t' wreck wi' some Diamond White... we all know's you Chegwin!"