1) Someone managing a feat of extreme fluke or percieved skill; such as winning a poker hand on the last card turned, bouncing a pool ball three times around the table, before deflecting it off the white into a pocket.

2) A sweet and tastey act of copulation involving fruit conserve, jam, or jelly being used as a lubricant, before the couple engage in a 69.
"You Jammy Fuck, how the hell did you make that shot?!"

"How do you fancy coming to mine for a jammy fuck tonight"
by Dr Insanity February 26, 2009
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A jumpsuit which is usually orange or black and white striped that males and females are given after being arrested and jailed.
Fred and Franny were busted for crack! They went to jail and were given Jail Jammies!
by LacyLavender 1 August 21, 2016
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Pants you continue to wear after you’ve sharted
Never trust a fart as you may end up with jammy pants
by Bnicks45 February 18, 2021
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One who is undeservedly lucky.
University pass mark - 40
Amount of studying/attendance - little to none
Results - 40, 42, 42

"You jammy bastard"
by ranados August 05, 2005
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A required undergarmet that Jesus Christ of Latter Day Saints (mormons)must always wear.
by JennyJET August 25, 2008
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to be relaxed, content, or just straight chillin

an expression of comfort
1. J- "how u liking that armchair"

D- "I'm in my jammies"

2. I'd be in my jammies right now if I had some popeyes chicken.
by Young Louee cdp gang. November 24, 2010
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