nsidb 

nsidb stands for not sure if done before.
When someone makes a meme and post it online but he/she doesn't know if it's been already made by someone else so he/she adds a #nsidb in the caption.

This meme is made by me #nsidb
<Original-Meme-Image-Here>

nsidb by ShaggyDishu June 2, 2019

Nintendo Nsider Forums 

Nintendo's official online forums. The best place to talk about Nintendo with fellow fans.

The Nsider forums are at forums.nintendo.com

Nintendo Nsider Forums by Beastiephile March 21, 2005

Nsider2 

The forum created following the end of Nsider(1), Nintendo's old official forum. It was originally created by site master EJRaven, but after some events, he has lost most of his influence. It is commonly abbreviated as "NS2." Most of the users there used to go on NS1, and later moved over to NS2, either right after the closure or gradually as time passed and NS1 never reopened.

Notable users on Nsider2: Retequis, Kodiack, Juni, Shia LaBeouf, Noishe, and Rhyme.

"I'm going to stock you Genius!" - A quote any Nsider2 user should know.

Most Nsider2 users believe NS1 was killed directly by NOA_ANDY, when he probably had orders from higher up.

Goomba: What should I do now that I joined Nsider2?
Plumber: I don't know, pick a board you think is active.
Goomba: I know, the Review board looks like fun!
Plumber: *facepalm* Here's a link to Power On.

Nsider2 by Nsider2 February 18, 2009

Nintendo Nsider Forums 

A very very good place to go if you like Nintendo.You can interact with other Nintendo fans. The mods and admins are nice and helpful. It's very fun friendly and run by lithium a great forums provider. I really enjoy the place and it's so awsome. I highly recomend you going there if you like Nintendo.

forums.nintendo.com is the site

Nintendo Nsider Forums by acisthebest February 12, 2005

Nintendo Nsider Forums 

A forum in which fans of Nintendo fans can gather to talk about Nintendo. Too bad that the moderators are jerks, and the forum is inteneded for little 7 year olds. The rules say it all. Why, you can get banned for anything not talking about playing with the Action League dolls.

I was banned from the NSider forums for mentioning that PSP graphics are better than the DS graphics.

Nintendo Nsider Forums by JAKE_SNICKET July 21, 2005

nsidiou 

Well your name is cool ig

Insidious+trend=nsidiou

nsidiou by ElijahTheViking May 20, 2021

nsidiou 

You are just a person who tried a weird trend other than that your name is cool

Insidious is a cool name tho

nsidiou by ElijahTheViking May 25, 2021