a twacky is the shudder that goes up your spine when you are taking a very relieving piss.

Intelligence agency term for "psychological operation". A government or corporate-sponsored operation, usually taking the form of a "terrorist attack" or "crazed gunman on a spree", with the intent of panicking the public into demanding more police and laws inhibiting freedom. Psyops are usually carried out by drugging a civilian or group of civilians with aggression-promoting drugs, psyching them up, arming them, and sending them out to commit mayhem. Government-sponsored terrorism. See also blackshirts, conspiracy

To have the qualities of a stimulant, such as meth. This can include feelings of jitters, excess energy, paranoia, restlessness, etc. See twack.

Any supplements or medications usually in pill form which give a boost of energy to the user. Not to be confused with illegal stimulant drugs such as cocaine or methamphetamines, these substances are usually made up in whole or part of caffeine and other stimulants. Often may be herbal in nature.

Twitchy and Wacky
Occurs in runners and other athletes when they have too much energy. Sometimes subtle, sometimes painfully obvious.

Nasty taste in your mouth, often after consuming something or something not so pleasurable

in bad taste, but expensive