Top Definition
A type of improvised grenade-like bomb used mainly in the first world war. Soldiers would use the empty tins from their ration of jam and fill it with explosives and shrapnel. Improvised jam tins often resemble the 'Double Cylinder Bomb' that was in use at the same time.
"I managed to kill two guys in trenches today using a couple of jam tins"
or
"Shit, a jam tin went off next to me and now I've got shrapnel stuck in my leg"
by flyingtele September 27, 2008

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Someone or something not worth knowing. A social pest and/or idiot. When something annoys you, its a jam tin.
That annoying crowe is such a jam tin.
by SCLover February 02, 2011

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Lotsa space for your liquids.

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Lotsa space for your liquids.

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Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt