What does 4 bi 9 stand for?

[shoenice22]

this is the best thread on newschoolers

 

[Charlie_Kelly]

4000

birds

in

9 cages

thats alot of bird shit

 

[fuck.your.tits]

It's the shithawks, they're on their way

 

[gnarles.]

hahaha i got a good laugh out of this one k+

 

[A_Zuck]

its the 1st one for positive.... i kind of know some people that know some people. im kind of a big deal.
4 bitchesB uttnakedI nhaling 9 Cocks

 

[TWoods]

I love you mommy.
muchohomo

 

[Backyard.Skier]

lul

 

[BMS-Productions]

damn stepp! hahaha made my day

 

[futurespin]

4

boys

ironing

naked

 

[japollner]

2BI4!!

You cant escape it!

 

[-Dan]

intentional

also this