my missus was on the blob last night, so I had a jam sandwich. Mmmmm....
by hotsexybiznatches January 26, 2004
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Someone or something that is completely unsuitable for a given task.
Captain Ahab is such a Jam Sandwich at everything. Except hunting whales.
by The Goose named Colgate February 1, 2011
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A peanut and butter sandwich with a penis inserted into it
i really wanted my PB and J for lunch but ben made it penisbutter and jam sandwich
by Brostapha February 23, 2011
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When a woman is on the rag and has a threesome with two men.
"Go on there, Simon! That jam sandwich you made me last night was dead good"
by S. Terrier November 7, 2007
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When you're utterly munted
(Mate 1) I was off my jam sandwich last night

(Mate 2) Yeah you were silly fucking hell get away from me
by Jam sandwich November 26, 2018
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When two guitarists or guiatrist & bassist play live and lean up against each other back to back.
Aerosmith put on a classic 'rawk' show down to Joe Perry and Brad Hamilton's homo-erotic Jam Sandwich during "Walk This Way".
by Stubblecat March 31, 2007
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