Autocannon 

The main weapon of a Tank. The scout has a smaller, less powerful version. Fires 12.5 rounds a second through the 1 barreled gun.

boom boom booooom

Autocannon by Stinky1 December 30, 2003

Autocannibalism 

the practice of eating oneself. Minor Examples include: Fingernail-biting that develops into fingernail-eating is a form of pica. Other forms of pica include the compulsion of eating one's own hair. Forced self-cannibalism as a form of torture or war crime is not uncommon.

In the film Spaceballs, one character named Pizza the Hutt (a parody of Jabba the Hutt) is revealed to have committed autocannibalism while locked in his car with no other food sources.

Autocannibalism by Colonel Chicken McNugget October 4, 2009

Autocannablazism 

When you get so high you believe you are a plant smoking yourself. Similar to autocannabalism.

Johnny: "I can't believe I just did that?"
Chuck: "What did you do?"
Johnny: "I just smoked my own kind."
Chuck: "Shit, man. Autocannablazism is serious."

Autocannablazism by DJ Snoopadelic December 2, 2016