A widely used and under appreciated term in which lad banter becomes the ruling determinate on a night out. These 'lads' then try to persuade others of the same sex into forgetting about the girlfriends they have and start convoluting the minds of there victims with ignorant and boring phrases like ' what about the post code rule?'
'Hey man, why dont you break the rules just this once and get with that girl?'
'Because I love my girlfriend'
'What about the postcode rule?'
'Your a devil dick'