A place in the countryside one drives to to smoke weed. Usually a patch of concrete or grass off road used during harvesting, hidden by trees/hedgerow in a farmers field. A good patch would have nice scenery, little mud and uneven ground, be discreet (no tyre tracks that can be followed and car can't be seen from road) and be able to cater for a few cars at once.
*Who are the twats that always leave munchie-rubbish everywhere? BAIT! Patchs are used by farmers too. .
*Having car lights on in the dark so people can see you on the road. .bad idea.
Girl 2: hmm just patch her
Boy: I saw Christie today and waved at her, but she just patched me...
In computer hacker terminology, a patch is an editing of a certain data file or executable that enables the end user to bypass the copy protection normally included in said data file. A patch usually consists of editing only a few bytes of assembly code.