Slang for pajamas. Abbrieviated as Jammy T's
I'm gonna put on my jammeister tony's before I go to bed.
by Spoestche July 18, 2006
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Someone who is very very jammy (lucky) - the master of jamminess
- I put 10p in the slot machine and got £50 back
- You jammeister!!
by Red Em March 9, 2012
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