Oisín is

the soundest lad you meet.If you meet a Oisín your gonna have a good life.If you hat a Oisín well you go to hell

A really cool guy that can chat up the women

Some Irish kids dumbass little brother.

When your refrigerator gets up and starts running

A person who exists. Enjoys bringing people down from the inside and watching as they crumble under pressure. Will do anything to get revenge. Good at decieving others into thinking that s/he is nice