Usually soldiers who are used as "fodder" during an attack to use up enemy fire before launching an attack. Cannon Fodder is usually made up of useless units that are in-expensive.

A term used to reference cannabis/marijuana/weed.

cannon fodder, meaning someone who is expendable or in simpler terms, a tool. It is a verry flexible term that is used widley in reference to politics and athletics, but most frequently in combat. The term is a military term that dates back to the civil war, troops would be sent out as distraction to the cannons, or simply as "food for the cannons" in other words, fodder means food, thus cannon fodder means cannon food.

1:one or more people use to take enemy fire.
2:recuits used as cannon balls when out of real ammo.

Panties or other items of intimate clothing as stuffed into a vagina by an erect penis during intercourse/coitus

Well stated above and can be directly translated onto the street to mean the same thing.

A Black Chalky Powder Substance That Appears Inside The Cannon After A Shot Often Cleaned By A Pole Broom