this sentence is used as a extreme level of Deadass, this goes beyond just saying "on a stack" which means extremely decades, " on a Stack no lack" means your are very deadass to the point where there is no lack in your deadass.
example:
friend 1 : your girl cheated on you with me.
friend 2 : your joking ..haha
friend 1 : no am for real on a stack.
friend 2 : cant be .
friend 1 : am on a stack no lack.
friend 2 murders friend 1, no doubts.
friend 1 : your girl cheated on you with me.
friend 2 : your joking ..haha
friend 1 : no am for real on a stack.
friend 2 : cant be .
friend 1 : am on a stack no lack.
friend 2 murders friend 1, no doubts.
by niguser October 6, 2022

The act of stacking several objects on someone that falls asleep with your shoes on. Not as mean as writing on them with sharpie, but just as funny.
by Oliver_Klozov April 8, 2014

The single huge smoke stack that people put on their diesel pick up truck in order to compensate for their incredibly small penis.
by speak da truf April 13, 2009

by anonymous August 26, 2022

by poopfart420 December 25, 2021

A „stack uh hats“ is considering a even bigger „cap“ (a lie). It’s quite literally such a big cap that it mounts to a stack of hats. A big lie is a „stack uh hats“.
by harryslaydeshaun February 15, 2023

by YG DRILLA June 7, 2019
