n: someone/something one thinks is cool or someone/something one likes/is fond of
n(2): a girl who resembles the inside of someone's crusty asshole; an ugly bitch who makes you gag when you look at her
v: to bitch someone out; to verbally own someone
Something that is very good, has exceptional qualities, is very large or just generally something that makes life more entertaining that the utter wank that it normally is.