An agent, especially a drug, that causes increased activity, especially of the nervous or cardiovascular systems. Caffeine is a commonly used stimulant.
Stimulants are commonly refered to as:
- Black Beauty
- Dexedrine
- Dexies
- Eye Openers
- Glass
- Lid Poppers
- Pep Pills
- Up town
- Uppers
- Wake Ups
- Water