Words you use sarcastically when someone is bothering you. They don't really get it but it really means you either want them gone or dead and possibly buring in a hole somewhere outside of town.
Rich: Hey! what's up!? You know, you should really go out with Alyssa
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).