To be stuck in traffic. To be gridlocked. 405 is a reference to the infamous 405 freeway in Los angeles, which always seems congested, regardless of the time of day it seems.
Sorry I'm late, but I got 405'd in traffic. You know how Fridays are!
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.