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A guy possessing above average testicular glands and a penile ratio of approximately 2 inches of length to 7 inches of width. A Eust's penis has been rumored to have the girth of an elephant's trunk, and the tip is upwards of 94% of the total penile surface area.
I fucked a Eust last night, and I've never been more sore in my life.
eust by P00SYP0UND3R April 8, 2015
Related Words

Eustacia 

The name Eustacia is a used for a baby girl. Eustacia's are shy at first but once they become comfortable around you, they start to show their real amazing personality! The girl is gorgeous not only inside but out and loves life to the fullest. She has gorgeous eyes, hair and body that no guy could ever resist. If you ever have the opportunity to befriend a Eustacia, keep her. She is a real one.
Mark- "Woah she is gorgeous, I wonder if her name is Eustacia?
Eustacia by kkkkkkkkkkk.1245 August 23, 2020
Eustace is a special kind of being. Typically a 20 year old boomer, Eustace spends his free time catching up on case law and analyzing the constitution. However, Eustace is always down for some beer with his boys, especially when they are Michelob Ultra. Eustace’s biggest enemies are those who are slightly more belligerent than he is, a sight not too common. A Eustace should be cherised, it is not often that you find vibes as special as his.
Mike: “What the fuck is Eustace doing?”
Joe: “Who knows, Eustace is useless.”
Eustace by IrishIsles November 15, 2019
combination of two words: educate and entertain ...edutain
edutain by preemo July 1, 2006

Eustáquio 

Eustáquio is the motivation monkey. When someone needs motivation, you send them an Eustáquio.
Person A: God, i hate statistics, i'm gonna fail every class and my armpits smell like bacon grease.
Person B: 🐵
Person A: What a lovely Eustáquio, i feel much better now, thanks!
Eustáquio by oobliviatedd May 16, 2021

eustress 

Eustress is good stress. Stress is simply an external stimulus, eustress is the feeling you get when overcome with the excitement and anticipation of a desired outcome.Eustress was first introduced by Hans Selye MD, an endocrinologist. Eustress is defined as "stress that is healthy, or gives one a feeling of fulfillment or other positive feelings. Eustress is a process of exploring potential gains"
The eustress of the moment overcame him with passion as he contemplated the realization of his goals
eustress by sales manager March 4, 2009