Balls to the wall - from RAF WW2 the cylindrical knobs on the top of the throttle levers when pushed to the firewall - ie fast as you can go
Also heard the explanation for the difference between "Roger" and "Wilco" - you can't wilco a cat.
And a really good one used unknowingly by little old ladies and nuns throughout the land - blow a raspberry - comes from cockney rhyming slang - raspberry tart
And from even further back - Viking norse - the words "drat" and "s**t". These have become transposed in much the same way as we now refer to "toilet" as "bathroom" or "rest room". Originally "drat" was the word describing faeces;"s**t" was the word meaning dust or mess. In polite society then the word "sh*t" was used to describe faeces and has now become the coarse word for faeces. Drat remains as a swear word but, over time, much reduced in effectiveness so that now, even the well known little old ladies and nuns will quite happily use it.