Ive been saying "heads up" when playing football since I was a kid,
I'm sorry, but I've never heard the term "heads up" in normal conversation.....maybe that's because I'm of a certain age I don't know.
my bad although not grammatically correct is a lot easier than saying "Im awfully sorry, I believe the mistake in that instance was mine"
You don't need to say all that, how about, "my mistake"
Zee is how the entire rest of the world says the letter "Z"
I'm aware of that, but in the UK we say Zed
and rotors are the rotating part of the brake TBF .......
The rotating part of the brake has always been called a disc in my book. Rotors are the twirly bits on top of helicopters