Someone who is so fly that they jump up and scream YOLO whenever there are people nearby. It is the evil counterpart of the swagasaurus and is even shorter than one.
Bob: Did you see someone jump up and scream YOLO just now? I think it was a yolodactal.
John: Oh, I didn't really notice because they're so short.
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).
Precedes or follows either a gratuitously disrespectful or honest remark, originated in New York City. Used in similar fashion to "no offense" or "to be honest," interchangeably.
Ya mans is wild buns, respectfully. Respectfully he's washed.
After school, The Modells on Jamaica Ave was active. Respectfully.