Chinook a cat
The opposite to 'you couldn't swing a cat in here'... used to describe a very large room where rather than swing one cat you could swing two cats like the rotor blades on a Chinook helicoptor.
Rae: 'Wow, you've got a very large bathroom!'
Martin: 'Yes, you could Chinook a cat in here!'
Martin: 'Yes, you could Chinook a cat in here!'