Top Definition
A mixture of the words "dull" and "evil", refers to someone who can be incredibly boring on purpose so that others will suffer.

Not to be mixed up with Devil, ie Satan.
She just wouldn't shut up about that pair of shoes, she's bloody delvil!
#delvilious #sadistic #sadism #dull #evil
by Neil MacLochlainny August 15, 2009
5 Words related to Delvil
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