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The ultimate declaration of unrivaled excellence. Synonyms include 'cool,' 'rad,' 'awesome,' 'abgefahren,' 'primordial,' 'bangarang,' 'wicked sweet', 'most excellent,' 'most triumphant, etc.' Derived from a Shakespearean character in A Midsummer Night's Dream.
Do you listen to Queen?

Yeh, I think they are Theseus!
Theseus by Jackie Deram May 27, 2005
The coolest individual in the world
A Theseus is always one to be trusted.

Plus, insanely hot and cool.
Keith: My best friend is a Theseus
Greg: Oh really, he sounds insanely amazing

Keith: God yeah, I absolutely love Theseus
Theseus by SpaceBoi June 2, 2023
A beautiful man with high sex drive he makes the pussy flow like water love is his passion and will pursue it relentlessly.
He's so hot he must be a Theseus
Theseus by Bruhhssuggsyhdss November 21, 2021
A person who attempts to act like an internet bully, but in reality makes himself look like the sad little idiot that he is.
guy: Did you see him fail at trolling?
girl: yea he must be a theseus.
Theseus by sonu89 May 9, 2011

Theseus Threshold 

When a band has more past members than current members.
That band hasn't been good since they passed the Theseus threshold .
Theseus Threshold by Getzby1021 January 14, 2021

Band of Theseus 

A band whose current lineup contains none of it's original members. Named after the Ship of Theseus.
In Flames should have renamed themselves Band of Theseus after Jesper left, he was their last original member!
Band of Theseus by Ganondox April 13, 2019
More from Urban Dictionary

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
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