Sexamus 

The ability to be sexy without work.

Justin Bieber looks so sexamus.

Sexamus by F.U.M.A. April 26, 2011

Seamus Finnigan 

Seamus Finnigan is a minor character in the Harry Potter series. He is desribed as having snady hair, freckles and being short. He is often used as comic relief and is best known througout the series for blowing things up, his Irish accent and is friendship with fellow Gryffindor Dean Thomas. He holds no significant plot but is recurring in other plots. In the books he asks Sir Nichols de Mimsy-Porpington how he can be nearly headless, but in the film the line is given to Hermione Granger. He explodes a feather while attempting to levitate it in a Charms lesson, a goblet of water as he attempted to turn it into rum ( and Ron Weasley claims once managed a weak tea before an explosion) and his potion in his sixth year Potions class with Prof. Slughorn. He saved Harry Potter from dementors in Deathly Hallows. In Order of the Phoenix he argues with Harry about the claims of Voldemort's return, claiming he believes the Daily Propher and he refused to join Dumbledore's army, until later in the book/film when he apologies. In this sub-plot Harry insults his mother.
Finnigan is Irish, his mother a witch and his dad a muggle who he claimed left when he found out about Seamus' mother. His patronus is a fox and he is often shipped with Dean Thomas (deamus) or Lavendar Brown.
The phrase, 'I did a Seamus/Finnigan/Seamus Finnigan' can also mean 'I cause an explosion'.
He is played by Devon Murray.

1) Person 1 'RUN! I just did a Seamus Finnigan!'

Person 2 'WHAT!! You idiot!'

2) Person 1 'Did you Seamus Finnigan in that chapter?'

Person 2 'Yeah, so heroic saving Harry like that'

3) Person 1 'He's so sexy. So bloody Irish. I love him'

Person 2 'Oh, here you go on about bloody Seamus Finnigan again'

Seamus Finnigan by ludii_90six January 1, 2012

seamus'd 

the act of going out on holidays or the weekend and drinking to the point where you can't talk coherently and wake up hand-cuffed to a hospital bed the next morning.

Bro - "I'm going out and getting SEAMUS'D this weekend!

seamus'd by relyt19 April 8, 2011

seamus

An Gaelic(Irish) name meaning James.

He was an Irishman with the name of Seamus

seamus by Seamus D. October 22, 2007

Seamus

The most beautiful man alive. Smart, kind, and honest. A true gentleman. He easily makes friends and is good to his woman and family.

Seamus is such a great person

Seamus by MLE13 February 5, 2010

Seamus

A dog, most likely outside, an old hound and probably crying too

I was in the kitchen, Seamus (that's the dog) was outside.

Seamus by Stratosphericc July 30, 2019

Seamus

The best guy you will ever meet. Honest, Caring, Understanding. Hella heart eyes for this dude and I hope he stays in my life forever. I love him with my whole heart

Person 1 - hey would you ever go out with seamus?

Person 2- fuck yea

Seamus by Fudgebubblemonkey765 March 11, 2019