Lads Rule
Lads rule is when you're the last few guys still conscious after a night of boozing. You can take all the beers people left behind. If someone won't give you theirs, just say lads rule and they'll be lucky if they get out of the night alive.
I'm not giving you my beer.
Lads rule. You're dead to me.
You'll be the laughing stock of the pub if you don't give me that beer.