What the ... rum?!?!?

"They are a rum lot."

If you have read any period novels, like those by Patrick O'Brian, you will have seen the word rum used in a way we aren't really used to seeing. In British slang (old) it can mean odd, strange, or even presenting danger or difficulty, when used as an adjective.

What can I say, I kind of like it. Mooks are a rum lot after all. :)