Tweaker is a slang term for someone who abuses Methamphetamine, Cocaine or other stimulants. The term comes from tinkering behaviors associated with methamphetamine use. For example, taking apart a bicycle or stereo while under the influence of methamphetamines would be phrased "tweaking on a bicycle or stereo." Tweaking denotes a compulsive behavior.

See also

• insult

Tweaker is also the name of a solo project of Chris Vrenna, former drummer of Nine Inch Nails.