Well I ain't building no bookcase 

well I ain't building no bookcase

a sarcastic response to the query "what are you doing?""what are you doing with that" when your exact intentions are clearly obvious

comes from a line from a line in the 4th episode of the HBO series BOARDWALK EMPIRE by bootlegger Chalky White as played by Michael K. Williams (Omar from The Wire) orating the grand wizerd of the kkk about the lynching death of his father shortly before torturing him
Chalky's dead father was a carpentor.Chalky whips out his old carpentry tools, the klansman responds "what are you going to do with them?" chalky responds
"well I ain't building no bookcase"

theres a pipe in front of you. you start packing it with pot your friend says "you gonna smoke that"
you say...

Well I ain't building no bookcase

Well I ain't building no bookcase by slappy the singing sea otter November 10, 2010

I ain't baking your potato 

Another way of saying, "Its your decision, I don't have a say in it."

Get whichever shirt you want, I ain't baking your potato.

I ain't baking your potato by Triamgle October 31, 2023

Listen lady whatever you’re selling I ain’t buying yo 

Well my name is skyler white yo….

My husband is Walter white yo…
Uh hu…

Mrs.white:hey you!
Jessie:Listen lady whatever you’re selling I ain’t buying yo.

Listen lady whatever you’re selling I ain’t buying yo by Gtagamer1000000 September 20, 2022

I ain't no bitch! 

Utterly useless, insult used in a fight.

Joseph Tinnelly used it to argue with Gordon Ramsay in The Hell's Kitchen

Gordon Ramsay: "unbelievable one simple request who and, why and you make a big song and dance"
Joseph Tinnelly: "I ain't no fucking bitch, Chef. I don't give a fuck! I ain't no bitch!"

I ain't no bitch! by bobbysmiles January 12, 2021

I ain't yo' baby's daddy! 

Phrase often used by black men when confronted by a pregnant woman, who usually wants child support.

Shaniqua: "Yo Tyreek where you been? I need some huggies up in hurr!"

Tyreek: "Hey bitch I ain't yo' baby's daddy! Back off my koolaid"

I ain't yo' baby's daddy! by Caleb Ross September 23, 2008

i ain't no bitch 

a common phrase you use to express the fact that you aren't a bitch, pussy, wuss, etc... Commonly used when you want to want to do something you normally wouldn't do on a limb.

guy 1: there's no way in hell im going outside
guy 2: fuck it i ain't no bitch
*goes outside and suffers in the cold, but fuck it at least he ain't a bitch*

i ain't no bitch by DickTwingler69 December 3, 2018

I ain't racist but 

I actually am racist and I'm going to tell you something I read online which supports and confirms my opinion.

I ain't racist but I just saw a website that tells the real truth about that rotten commie, Martin Luther King.

I ain't racist but by Crawdad Nelson December 2, 2016