Ladavoochery - Ladavoochery is when a group of lads all swear they're going

Ladavoochery is when a group of lads all swear they're going to be the most idiotic, and then argue about it.

'You better be the one who throws the bottle, or I'll punch you.'

'If you don't shout at the teacher, I'll tell your mum.'

'You're only a real lad if you're the loudest one.'