Someone who talks a load of crap for an extended period of time and does not know when to shut up!! The action is known as crusting. Frequently overused by some people which in itself is crusting!!

The forming of a disgusting crusty like substance on one's eyelashes.

An unfortunate buildup of dried sexually derived fluids such as semen, vaginal excretions, and anal mucus on women's white cotton panties.

dried-up anal and vagininal secretions around a woman's cunt, as a result of her not washing her pussy. usually, the uglier or older the woman is, the thicker her crust is. crust has a tendency to smell like fish mixed with anal juices, and some canned tuna companies do not actually can tuna, but actually crust scraped from fat, ugly, 40 year old women.

Crust is an offshoot of the UK82 movement. The genre is characterized by extremely fast drums, heavily distorted guitars and screamed vocals. Crust and grindcore are both related, grindcore being an offshoot of crust.

Crust fashion is usually very extravagant and dark. Crust punks will usually have black vests covered in studs and band patches.

Crust punk is played all around the world, but is usually played most in America, Japan and Europe (Sweden, Holland, England).

The outermost layer of the earth.

This layer is asls considered part of the "Lithosphere" which consists of the upper mantle and the crust.
"litho" translated in Greek means "rocky". Stating that these two are both rock and closely related in cheical composition.

crust is a multipurpose word which has no true definition. it has been used to describe any kind of flaky skin caused by a multitude of conditions eg leprosy or excema. it is also used in moments of anger or just in casual speech. very prominent in the city of london school for boys.