If something is shellings, it's absolutely amazing. This is most used in UK Garage/ DnB subcultures. Many variations of this word is used to mean different things. Shellerz/ shellington / shelby are all different variations meaning the same thing. If a DJ is "shelling down" at a rave, it means they're shutting it down with their lyrical skill.
One who is brazen, fearless or disregards the consequences of his/her actions. Crazy, Overconfident, Ill.
Origin:Charlotte, NC - the QC - the Queen City
1. He came in and assaulted the young man openly in public, He is rather "shell"
2. Dude just rolled in and punch my man dead in his grill. He straight "shell"