When someone goes book, or book mode, they have messed up. They were unintelligent , made a petty mistake, or were oblivious to something obvious. Being book is nothing to be proud of, so now it has been made into a meme
Damn, I just tripped over my own shoelace; I've gone fullbook mode
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.