-To manipulate or hurt for personal gain. To crush one's spirit in order to feel joy in anothers misery. The act of complete selfishness at the expense of someone else.
Jane told Roy to pick her up at her house for their date at seven thirty. When Roy arrived at seven twenty Jane was with Ted and left to go on a date with Ted. Roy told his friends later that Jane was a decivious bitch!
"Sometimes they can be really smart, but other times they say the dumbest shit, you never know what you're gonna get. God, they are such a deciduous dumbass."
Pronounced dee-sea-vee-us Somebody who is sneaky, to do things that appears to be something that is not true. The words devious and mischivious combined.