Crystal Methin' = a word commonly used by chavs to describe something as good. Used by MC Devvo. Refers to methamphetamine, a highly potent illegal drug.
Archaic Verb. A surviving old-English dative construction of "it seems to me" where "me" is the indirect object. Sadly, abused by people who make special trips to Pinkberry.
Another way to say 'i think'. First seen in culture in William Shakespeare's play 'A Midsummer Night's Dream', used by the servant Puck (you're impressed). But the worlds nerd subculture became enthralled with the term, when the term was used by Jar-Jar Binks in Star Wars I: Phantom Menace, hallowed be thy name, and is used by NORMAL PEOPLE in conversation. Sometimes used at the end of a sentence, to add an opinion (example 2).