(Not to be confused with crackhead, which is a noun and describes a person addicted to crack, cracky, is an adjective which can be used to describe the following.)

1. Poor behavior, poor quality, poor actions or decision making.
2. Any similarity, resemblance or relating that of a crackhead.
3. Unkempt, uncleanly or unsanitary in appearance.
4. Anything gross or repulsive in nature.

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

Being under the influence of crack cocaine.

When you can feel all the hair follicles on your head after you've been awake too long. Mostly after using hard drugs or uppers like caffeine, adderral, crack, or meth.

A word used by Dave Chapelle to describe a crack addict or a crazy. Can be used to insult friends to.

crackwhore , stupid whore that takes crack

Cracky is a synonym of great but is only used in the context of explaining that you are feeling not great or unwell. Used mostly in northern England, especially Yorkshire.