This word is taken from the Irish term for social welfare. A dooln is essentially a grinch type individually who makes up tales and pretends they are poor. They hoard money like a miserable goblin. A dooln is not a social individual and prefers to stay indoors and count their "hard earned" cash.
A dooln is generally treated with contempt and caution
I just watched the lion king the other day, its so sad how scar kills mufasa! . That back stabbing lion is such a dooln
I invited him / her to my wedding but he said he wasnt willing to waste his / her money. What a dooln!!!
I acted like a bit of a dooln last nite and wouldnt pay for my round of drinks
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