'neck' - To give head.
'-logy' - the study of.
Neckiology: The study/class on mouth to penis therapy; a fun word that can used in the subject of women, girlfriends, slutts and blowjobs.
Charlie: Ha, I know right...She must be taking neckiology.
Steve : *hits Charlie*...asshole.
Charlie Yea, she so good, she prolly teach it...