Speedster 

Someone who will win 1st in every 100meter race(e.g. Usain Bolt).

A very fast person.

Maddi:Did u know Jonathan went undefeated in the 100!?
Jazmin:No wow what a speedster!

Anthony:Usain Bolt just beat the world record!
Rashad:Yup he's a speedster.

Speedster by SixPackjonny August 6, 2010

Speedster 

A type of DC super hero that uses the speed force to move much faster than human limits.

Me: I am a speedster
Unnamed person: Really, Your name is Ezra Miller
Me: No, it’s Grant Gustin

Speedster by Derpy Hero April 18, 2019

speedster 

People whom need to build up their confidence with the help of speeding machines, due to their small penises.

Asian speedsters are often seen small stature.

speedster by Peevee September 10, 2008

Speedster dinosaur dark souls 1 dark souls 2 dark souls 3 honor 

The highest and strongest level of a promise that can possibly be promised. By uttering this phrase, one makes a promise that cannot and will not be broken no matter what.

“Speedster dinosaur dark souls 1 dark souls 2 dark souls 3 honor, I will not forget to pick you up later.”

Speedster dinosaur dark souls 1 dark souls 2 dark souls 3 honor by Robbie Whitefish June 5, 2023

Scarlet Speedster 

1. A fast redhead.

2. A tempting seductress with red hair.

3. Neat and tidy trimming of a (true) Redhead's pubes, giving the appearance of a small drag strip leading to her nether regions.

My dreams came true last evening when Lindsay took me home and proved, indeed, she was a scarlet speedster.

Scarlet Speedster by ButtFuzz August 16, 2006

Scarlet speedster 

A person usually refering to the meta-humans with impossible speed (like barry allen or jay garrick.etc) in the dc comics.

"Another scarlet speedster like myself"

Scarlet speedster by Ligma spreader 2000 April 15, 2019

Social speedster 

A social speedster is someone who essentially 'speedruns' through their social media networks, which includes scrolling through their feed like a madman, liking posts with minimum forethought, reading all their PMs under a second, and clicking on one insta story after another without any pause in the middle.

Social speedsters are also highly known for sending a snap in a lightning quick succession. The time it takes to take their phone out of their pocket, enter snapchat, and snapping a pic is only a mere 3 seconds.

Nowadays, most youngsters and young adults are social speedsters. This inclination can have its drawbacks, as a social speedster may zoom through their PMs but not respond to them immediately, and eventually as more PMs build up they might forget about the ones they've already read.

Me: My friends are all social speedsters. You should see how blazing fast they plow their feeds and PMs. Every time I send a message and it gets read and they never reply back, I sometimes question my relationship with them, but then I remember "oh duh, they are social speedsters". Can't blame them entirely, as they are just trying to adapt to today's information-packed, attention-based media.

Social speedster by Mary Mary Quite The Contrarian November 16, 2020