A clontarf is a feminized liberal male douchebag; a know-it-all phloom who has to have the last word in every conversation; a guy who uses puns, big words, and trivia questions to show everyone how smart he is; a dick weed who always corrects your spelling. Like a black hole, he sucks all other conversation out of the room so that he can only hear himself talk.

See also phloom.
We were laughing our asses off until that clontarf showed up. Fuckin' phloom!
by Hafsemi Rafsanjani February 28, 2008
Get the clontarf mug.
the best area in da whole of ireland, perfetly balanced, evry1 is stuk up ther own whole like in places such as blackrock and other posh areas but its not a big knacker hole like ballymun or finglas, etc.

its just rite best place 2 live EVER!!!!!!!!
clontarf is da best place in da world 2 live
by timmyotoole1 September 24, 2007
Get the clontarf mug.
A high-ranking Dutch wizard.
I haven't seen anyone as powerful as Dumbledore since the days of Clontarf.
by Blaggerz55 October 4, 2017
Get the Clontarf mug.
Clontarf is a slum in the north of dublin. Ran by zack mceown and his clontarf crip gang affiliates.
Legend says if you walk past wacko zackos house you will be chased by a bald old man with zackos head peeking in the back.
I cant go to clontarf because ill be bet tickeled and stabbed.
by Bungybingus April 11, 2022
Get the Clontarf mug.