Top definition
n.
1. An unintended convulsion
2. an orgasm
see: huzz

v.
1. to orgasm
Ben: <Sits next to Laura.>
Laura: You just made me involuntarily shiver.

Andy Samberg: When Bruce Willis was dead at the end of the Sixth Sense, I had an involuntary shiver.
by Samberg April 13, 2009
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