hafftoo - A dramatic way of saying 'I have to' like it's the end of th

A dramatic way of saying 'I have to' like it's the end of the world and you're the last person left.

'Hafftoo finish this project or the world will end!' cried my friend.

'Hafftoo eat this burger or I'll summon a demon!' said my brother.

'Hafftoo do this math or I'll make you cry!' yelled my teacher.