pid-stu 

A extreme stupid person. But you can't call them 'stupid', so you call them 'pid-stu'.
STUPID = STU-PID = PID-STU

1: You are so... pid-stu!
2: You are so mean! I am telling on you!
2: Teacher!

TEACHER: yes?

2: 1 called me a mean name!
TEACHER: What did they call you?

2: uhh... pid-stu?
TEACHER: What does that mean?
2: I dunno.
TEACHER: Tell me when 1 does something that is actually mean.
1: Hahaha! You are such a pid-stu 2!

pid-stu by Emma-NEM March 16, 2021

STU&PID 

Amber is Stu
&
Jessica is Pid

you would be called stu
&
your friend would be called pid

STU&PID by Jessica March 3, 2005

Stu Pidasso 

Username of the infamous image board owner at frenschan.org an off-shoot of 4Chan, which became popular in early 2022. 4Chan users began flocking to Frens Chan when 4Chan became overrun with degenerate content such as BBC and tranny porn posts, according to Frens Chan users. Stu Pidasso or Stu (and his partner Hizzy) are known to rule their website with an iron fist, banning shills that post degenerate content, aim to slide threads and demoralize image board users. Stu is known for being extremely based and is often called a schizo by Frens Chan users.

Stu Pidasso is going schizo again

Stu Pidasso by therealterrydavis June 18, 2022

Stu-Pidasso 

Stu-Pidasso; A stupid asshole

As Mitch is drinking the last beer and never buys.
Andy; Hey Stu-Pidasso go get some beer.

Stu-Pidasso by Candyman May 14, 2004