Sesquipedalianist

A person who uses long, unusual, sometimes obscure words in speech or writing.

You can be quite the sesquipedalianist.

Sesquipedalianist by Aneles March 13, 2010

sesquipedalianist

A person who uses unnecessarily large or obscure words.

Example: Will Stocksdale is a sesquipedalianist

sesquipedalianist by ryangrace101 July 25, 2016

Sesquipedalian 

An extraordinarily large word. A word that only the pedantic use.

Pejorative is a sesquipedalian for insulting.

Sesquipedalian by John Paxton March 20, 2005

Sesquipedalian 

ses·qui·pe·da·lian
n.
A long word.

adj.
1. Given to the use of long words.
2. Long and ponderous; polysyllabic.

A sesquipedalian is Throwing long word in a sentence that is un-needed:
Gregory found traffic court a Kafkaesque experience

Sesquipedalian by Chiliad May 23, 2006

Sesquipedalian 

A big ass word that can be used to describe someone that uses big ass words

You are such a sesquipedalian

Sesquipedalian by Asdfghjkl69420 December 19, 2019

Sesquipedalian 

A lover of words; particularly long words. These people don't merely love these words, they lust these words, they fantasize about them, they fucking ADORE THEM!

The lives of Sesquipedalians are words, they live, breathe and eat words. Literally. Extreme Sesquipedalianism (or ES) is a condition whereby a patient reports excessive masturbation and intrusive sexual thoughts about words. Treatment is sparse.

Nick: Hey, I redecorated the bedroom with Predominantly last night.

Warren: You're such a sesquipedalian! I love Paradoxically so much I think i could cry.

Sesquipedalian by WizWaz91 March 11, 2011

Sesquipedalian Loquaciousness 

Sesquipedalian (adj.)

(Of a word) Containing many syllables.

(Of a person) Having an advanced vocabulary.

Loquaciousness (adj.)

(Of a person) Having a tendency to talk a lot; garrulous.

(Of a sentence) Using far more words than necessary; verbose.

Therefore, "Sesquipedalian Loquaciousness" refers to the tendency of a (usually) highly intelligent person to use extremely large words in mass quantities in order to sound more intelligent. Commonly found in chemistry and other ambitious majors.
Done right, it makes the person sound like someone who oughta be respected and paid attention to, because they definitely know what they're talking about.

Done wrong, it makes the person sound condescending and/or pretentious.

I started playing Words With Friends with Stephen. Terrible mistake. I should have known his sesquipedalian loquaciousness would give him the advantage. He wipes the floor with me every time!

Sesquipedalian Loquaciousness by Ubeenbamboozledson April 24, 2022