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A baton, often used by Police, that extends out when flicked.
"Fuck, that feds got a cosh, don't mess man."
by Jason May 23, 2003
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Under pressure
Under the cosh

If someone is under pressure because they have a deadline for a piece of coursework, or your team is under pressure to hold on to a one nil lead, this is known to be 'under the cosh' hence you are under pressure
"I have got so much work to do, so I'll give u a ring when I'm not under the cosh"

"We're just managing to hold onto a one nil lead and their really putting us under the cosh"
by ddaazz June 02, 2006
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n. lump of wood, used to hit people. v. to hit with a lump of wood. Standard European Romany word 'kaasht' meaning a piece of wood.
by klidenengro January 30, 2004
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To lick a pregnant person's vagina. Usually, you end up with a mouth full of mucas.
"DUDE! I coshed my girlfriend last night,"
"EW! How nasty was it?"
"Pretty bad man, pretty bad."
by sillybillyfillykillymilly December 22, 2008
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