Beat me to it OF LOL

Often heard the expression "trust the septics to do that"

septic tank = rhyming slang for Yank (which is a broadbrush descrition for all americans, not just the northern states)

Another saying that was a bit sensitive for our american cousins was the term used in the services as U/S - Unserviceable. That was frowned upon but it is still in common use in British & Australian service lingo. It had absolutely nothing to do with the United States BTW.