Top definition
When someone acts like a cancerous or toxic person to other people.
Tom stop being Jancer
by Juicyflipflops February 16, 2018
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fancy word for a thot for the times you need to be classy
me: she's a jancer
(the jancer): fuck you
me: she hwt my fewins
by wird prsn July 31, 2019
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