It's an inside joke that Oceanyhammy#4183 and @NSG650#0632 (on discord) use it. It is based on a bird meme. The meme consists of the bird - The Shoebill. The caption of the meme is "The W".
The Bablu rhymes with the caption and sounds funny.
NSG650: NO WAY IT'S THE W (BABLU)!
OCEANYHAMMY: NO WAY IT'S THE BABLU (THE W)
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.