Sweet and evil simultaneously.
Cats are so sweevil--they scratch the hell out of you one minute and curl up on your lap for a nap the next.
by aj August 09, 2004
1. Being sweet and evil at the same time.

2. The most awesome word ever

3. Invented by Shawn Spencer, Main character on psych

4. Often used to describe someone devious
1. My girlfriend is so nice, she is always bringing me gifts. But, at the same time, she is using that against me to get me to do whatever she wants. She is so sweevil.
2. Sweevil is my favorite word.
3. Shawn always has a word for every occasion. Yesterday, he was interrogating this girl who seemed really nice, but was really actually kind of cruel. He made up the word sweevil for her in a jif!
4. When the teenager was trying to trick her parents into leaving for the weekend so she could have a party, her brother couldnt stop thinking about how sweevil she was being.
by TheAmazingPsychMan March 16, 2014
Sweet + Evil, usually when someone seems sweet but is really evil.
I thought Iona was sweet, but it turns out shes really evil and it was just an act, sweevil b*tch
by LadyXxX November 03, 2006

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