DNSDC 

Originally stands for Defence National Storage and Distribution Centre located in Sydney, Australia however civies often use it to stand for "Don't know shit don't care" as the RAAF who work in the real DNSDC don't know shit and don't care.

"What did you do that for"
"Because I DNSDC!"

DNSDC by Melbell September 23, 2005

dndc 

Don't know don't care

Meg : Do you know whos Chad's gotta new gf is?
Beccie : dndc

dndc by Beccie_Love April 18, 2008

DNSC 

Did Not Scroll Down

Help Desk Technician: DNSC = RTFM
User: DNSC = who designed / wrote / created this rubbish
UX expert: DNSC <> great UX

DNSC by graceandlucy September 19, 2016

DnsChef 

DNSChef is a highly configurable DNS proxy for Penetration Testers and Malware Analysts. A DNS proxy (aka “Fake DNS”) is a tool used for application network traffic analysis among other uses. For example, a DNS proxy can be used to fake requests for “badguy.com” to point to a local machine for termination or interception instead of a real host somewhere on the Internet.

I redirect users to a fake website using DnsChef

DnsChef by makeyourownname March 19, 2021

DNSD

December; national slap day: Today, slap people named Aleksandar

Anyone living in this universe, named Aleksandar is going to get slapped on december 7th! DNSD

DNSD by Godwitt December 6, 2022