Current Projects chat and miscellany

It's like when you were calling any bike with a bit of rust and some skate stickers on it a 'Rat bike'.

How do you define a rat bike?

wiki says;

Rat bikes are motorcycles that, over time, have fallen apart but been kept on the road and maintained for next to nothing.

I thought the cycling use came from Sheldon Brown... altho I can't for the life of me find it.