Thumbnail bitch 

When your "Lurking" on facebook and you believe to have spotted an attractive female through a thumbnail picture, so you decide to click on the thumbnail only to find out its a nappy hoe that resembles one of the Hanson brothers.

Jake: "WHOAH WHOAH WHOAH, is that bitch sexy??"

*click*

Jake: "Eww.. WTF.. is Hanson in town...what a Thumbnail bitch? "

Thumbnail bitch by bigdaddymitch0745 November 18, 2009

should have stayed a thumbnail 

What you say after clicking on a profile photo that scars you for life when seen full size.

I clicked on his profile cuz I thought he was hot. But damn, he's so fugly he should have stayed a thumbnail.

should have stayed a thumbnail by Woofyman February 10, 2022

Thumbnail Hottie

When browsing friends networks ( like Hi5 or Facebox) and you see a Hot ( Mae or female) and you get hyped because they look hot, then you click on the picture and realize that they aren`t hot at all

I was browsing Hi5 and saw a smoking hot chick, i watched her pictures and realized that she was only a thumbnail hottie

Thumbnail Hottie by Froosh January 31, 2007

Misleading Thumbnail 

Also known as "Fake Thumbnail", a controversial type of thumbnail on YouTube in which a YouTuber would use this type of thumbnail to grab user's attention and then trick them into thinking there is a actual content on the video itself, such as a image edited with photoshop of the content in the video to even exaggerate the result as well.

"I have ever seen a misleading thumbnail featuring my hobbies i love like Apple products and other high-quality products." - The creator of this definition

Misleading Thumbnail by Ryan900USAYT March 6, 2022

thumbnailer 

term used to describe a person that appears to be attractive in a thumbnail picture on a social networking website, however, the full size image reveals their ugliness.

sometimes used to describe if you would have sex with the person if they did, in fact, look how they do in the thumbnail image.

goes along with the trend of people always placing the image they look best in as their profile picture.

I was browsing Facebook today and ran across what i thought was a cute girl. She looked good in the small picture, but once I clicked on it I found out she was a thumbnailer.

thumbnailer by Linger May 20, 2009

Thumbnail Beauty

A person, usually female, that is only attractive in a thumbnail image. This is similar to HFFA.

Josh is browsing on the Internet when he sees a thumbnail of a girl.
Josh: Oh, she's hot!
Josh clicks on the image
Josh: Shit, she's a thumbnail beauty!
Josh then proceeds to vomit all over the screen, probably in an attempt to shield his eyes from the girl's ugliness.

Thumbnail Beauty by Christopher Eccleston June 6, 2013

small sml thumbnails 

a music/ sml parody youtube channel with 20 and his other channel with 455 subscribers he has a youtube minecraft channel and a vods yt channel

had you seen small sml thumbnails new video

small sml thumbnails by fortnitekids649468 October 15, 2021