In Australia, “I’m up for that” and “I’m down for that” mean the same thing
Also “it’s just up the road” and “it’s just down the road”
It means the same everywhere else too; you ain’t special. Sit down.
the real magic in the harry potter universe is how harry was always in the right place at the right time to overhear the exact conversation between the two people he needed to know to piece together the mystery of the year like god damn