An expression of approval, often for a job well done, or approval of a characteristic. Amplifications include, 'jolly' (polite), 'bloody' (impolite) and others. Sometimes used sarcastically. Primarily dated/retro British slang.
Intentional:

You invite some friends over to watch TV, and they show up with pizza and/or Chinese take-out.

You: "Good show!"

Sarcastic:

Bobby rides his skateboard down some steps, hops up on a railing, slides down it, loses his balance, and lands face-first on the concrete.

Eric: "Jolly good show, ol' chap!"
by ClimbingTheLog October 29, 2007
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An outdated proclamation of satisfaction usually made in a semi-British accent by a CPA (Certified Peeler of Assorted fruits).

Always accompanied by locking the arm to a 90 degree angle and swiping in a downward motion, possibly to disguise the soiling of the front of the pants.

Can be either preceded/followed by an expression of "damn shit".
Mr. Rick: How's everything coming along?
Ms. Dying: I almost finsihed Massachuts.
Mr. Rick: Damn shit..Good show!!
by oj aqua center March 27, 2009
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Taken from the film "Shanghai Knights". Best used when talking about a good song/show. Can also be said after hearing a funny topic.
by El_Scorcho August 28, 2003
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The sophisticated way of saying congrats for sophisticated British people
Son- Father I lost my virginity last night to radiant girl with rather good and nice buttocks

Dad-Jolly good show!
by cool j and the gang January 18, 2017
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British slang for when a group of people throw several live grenades and fireworks into someone’s house for the purpose of a common prank.
“Hey let’s go prank Jimmy with a Jolly Good Show!”
by Queenlad21 June 9, 2021
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(adj) it sucked,{this term is esp. used for plays or musicals}, it was a horrible production
Their productionof "Annie" was a good highschool show.
by Cassidy February 23, 2004
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