a Ramsey
In the UK, a Ramsey is a knife. People use it in fights, schools, and sometimes just for fun. It's like the ultimate weapon for people who hate each other.
He brought a ramsey to school and threatened to cut my hair. I said, 'You're gonna regret that.'
My cousin got in a fight with a ramsey and lost two teeth.
They use ramseys in the UK like they're going to war.