Used to describe a car made to sound louder and more aggresive than it actually is. Typically done by Boy racers by fitting an aftermarket exhaust system.
Went quickly or went unencumbered. May have to do without the old idea of having an account or owing money... having a slate, and maybe this the idea of being free from debt...
Someone who is very stingy and tight with money. Usually given to GAA match stadium stewards who don't leave people into the stadium for stupid reasons.