A fastball.
An improvised adhoc airdrop resupply pack, composed of ammo, food and water, and other supplies, stuffed into a body bag or duffle bag.
An Egyptian racquet sport.
Coffee with espresso.
A mix of heroin and cocaine.
A competitive variant of paintball with an equal playing field, contrasted with woodsball.
To take heroin and cocaine at the same time.
To occur fast, as if trying to finish as soon as possible.
An aircraft that can travel at the speed of sound.
Ultrasonic, having a frequency too high to be audible.
Greater than the speed of sound (in the same medium, and at the same temperature and pressure).