look up any word, like blumpkin:
 
1.
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!
by Jackie Deram May 24, 2005
 
2.
He did it or something.
Theseus did it or something.
by Vithon March 15, 2011
 
3.
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.
by sonu89 April 19, 2011
 
4.
The greatest mythological figure of all freakin' time!!! Sometimes referred to as Theseus but his real name is The Seus. He is invincible and he has a stomp band called The Seus's players.
The Seus is the awesomest person who ever lived.
by Zach E S June 24, 2009