A Neoconservative. One who accepts the RNC talking points without question. From an advertisement which appears on most right-wing blogs: a muscular man claims you can "master your body weight" via exercises that appear to involve humping the floor.

someone who only likes to have sex in the daytime

a) somebody who will never pass you, but lingers way too close behind you.
b) a tail-gater that fluctuates their speed dramatically on the highway just to piss you off or because they're on their cell phone.
c) a tail-gater who might even pass you, but will eventually slow down and tail-gate someone else.

A Plumper Humper is someone who like's humping a fat person (male or female)

(n.) to be in a situation that is similar to the crumbs of a cookie
(v.) to hump something so that it gradually disappears

A Christian religious fanatic, commonly seen in Georgia or other parts of the Bible Belt. Bible Humpers love the Bible, so they hump it.

a girl who is attracted only to hipsters