NTD 

The state of having nothing to do which occurs all day everyday. More than likely this results in you wanting to get stoned. There is never anything to do anywhere, and wherever you are you probably want to be somewhere else. A Way of Life!

Ryan: "Yo, what you doing today?"
Greg: "Ntd"
Ryan: "Word, ill bring my bong?"
Greg: "Yeah, I have some chips we can eat."
Ryan: "Yeah we can listen to my new techno CD, its crazy!"
Greg: "yeah lets sit around and do nothing basically"
Ryan: "Yup... NTD... like usual.."

NTD by Ryan H. K. March 11, 2008

NTD 

Nicotine Transmission Device. Any Vaping device you chief.

Yo Evan, let me get that NTD,

NTD by BigChief8219 December 5, 2018

NTD 

No twerk December

Katie: *twerks*
Jon: You can’t do that it’s NTD

NTD by Real girl who December 2, 2019

NTD 

National Thong Day

Sarah P. was wearin' a nice white thong on NTD

NTD by BDS March 19, 2003

NTD 

whenever you see at least 5 hot girls wearing thongs on one day and you think to yourself, "mmm, mm mm, mmm

Dude, it's NTD today. I saw like 7 hot chicks wearing thongs today. I almost had to go to the bathroom to jack off!

NTD by Dan Solomon November 13, 2003

NTD 

Any day in which you see a sweet ass thong

Holy hell john! we got a big ntd ova here!

NTD by TDS September 11, 2003

NTD 

when you see some hot ass chicks with thongs and you say to yourself "mm,mm,mm,mm"

Dude, it's totally NTD today up in this hizzle. I saw like 6 chicks today with sweet thongs!! mm, mm, mm, mm!!

NTD by Brian Smith November 13, 2003