jammy cunt means a very lucky person, can be used sarcastically.
oooooooooooo oski, you jammy cunt!!
by Jack Pemberton October 30, 2007
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an insult you give people when they have something you want or can do something you can’t etc. this insult is quite petty.
person 1: i’m not in school tomorrow, i have a doctors appointment.

person 2: you JAMMY CUNT! we have a maths test!
by mullarky May 20, 2019
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