One who will spoil plots and endings of movies.
Mike: " He just told me what happens at the end of Harry Potter"

Mark: "Ah, so he pulled a Ronan"
by Blinky19_2004 August 05, 2011
the definition of ronan is not quite fully understood. there are very many different definitions for the word Rónán or Ronan.

1) a very strong, attractive, well built, popular, sexy ladiesman. He excels in sport and although is aware of his talents he keeps them to himself. he is the best friend a guy can have and often makes friends with people by the name of patrick, paul, or fringledish (if indian). He himself invented popularity and his powerful build and massive chest, legs and arms make him an all round intensive athelete. Pele and maradon were often referred to as the ronans of their football era.

2) a sexual position involving fire, petrol, match sticks, electricity, a bath tub of water, an electricity operator, a wild bear-man-pig, an innocent hamster with white fur and a blue streak down its back.

the position involves a bathtub filled with petrol, and diluted with water. when a man and a women are making love (women must be on top) in the top, the women must strike the match of the mans beard and drop it into the petrol they are making love in. For every 10 seconds the women does not light the match the voltage will go up by one. Th purpose of the electricity is to jolt the man into action when he becomes tired. The couple cannot escape the inferno or the electricity until both parties have ejaculated. The man-bear-pig must be trained not to maul the couple until they are dying. this will take approximatly 5 minutes, so the man-bear-pig must be obedient. one last lifeline the couple have before the man-bear-pig is set loose is to decapitate a white hampster with a blue streak on its back. this must be done by setting the head of a hampster in the womans hole, and donkey punching her. the couple when finiished will be rejuvinated and madly in love.

As you can see, this act is not often completed.
1) "yo dud, whats wrong"
"man i just lost my girlfriend to another guy"
"well dude.... hit the dweeb, ur 2.2 metres tall and weigh 18 stone... dude ur a boxer"
"no man... to ricky... hes a Rónán bro"
"oh shit... just... just stay away from him man, he would maul both of us..."

2)" did you hear? Josh and his wife pulled off Rónán"
by soccerbabe4477 June 05, 2009
Ronan, Its hard to achieve such a status. Basically being a wing man, for your pals. No matter how ugly or fat the friend is. Call Ronan, he'll fuck anything.

Also known for his 'patter'. And a strange ability to work his magic on all most any creature.
Friend chatting up a hot girl, fat friend comes out of no where. ( friend thinks to himself) Fuck what do i do? All phone Ronan..

"hay man theres this girl ehh.. and her friend"
Ronan : " Dont worry am on her"
by An Actual Ronan January 13, 2011
(noun) the act of hugging someone closely and creepily. its intent is to display affection but it really just turns out being uncomfortable for anyone watching (or in many cases, for the victim of the "ronan.")
a ronan is usually performed but behind, but many forms have derived from the original ronan (for example: the sidways ronan, the front ronan, the 360 ronan.)

(verb) "to ronan" is to perform the act of a ronan on someone, whether or not it is expected. one step below dry humping.
I feel so violated after the ronan that dude just gave me.
Dude: Can I ronan you?
Girl: Can I go throw up and die?
by i_like_turtles_muahahaha December 03, 2010
1. A little seal.

2. Moglie boy.

3. A boy who manages to annoy any girl after being with her for more than 5 minutes.
aaww, that ronan looks so cute on that rock (:
by mare-bear September 02, 2008
Most ronans are homosexual, generally they have hair that is unattractive an repulsive. Never the smartest friend in any group and tends to have a poor ability at games such as COD
Friend 1: 'God this person i'm playing on COD is rubbish!'
Friend 2: 'I bet they're called ronan, he's such an idiot'
by Lucozade Baron October 30, 2011

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