Top definition
A person that has a cheerful mental hold on you.
Elaine: I can't leave him...he has a mental hold on me. He's like a Svenjolly.

Jerry: Svengali.

Elaine: What did I say?

Jerry: Svenjolly.

Elaine: There's no way I could have said "Svenjolly."

Jerry: Well, maybe he has a "cheerful" mental hold on you.

by johnnieb54 November 29, 2008
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