The sneeze that tickles but never comes, according to "The Meaning of Liff". So called because at this North London station the rails rattle but the train never comes.
"Ah...! Ah...! Oh it's gone"
"An Amersham?"
by Luke October 10, 2003
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A school which has been captured by a wicked bitch named Mrs Jarret.

Can be a name for something which was once okay but now is now worse than hell.
"Alright mate hows everything in jail?"

"My life has turned into such an Amersham school right now!"
by MrsJsucksout September 7, 2010
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The Amersham school was once an all girls school (probably in favour of the Chally boys) which was then taken over by a snake called Mrs Jarret. Mrs Jarret will make children do things like take off their shoes during assembly, which is a bit of a red alert for anyone who has heard of what a foot fetish is. She also makes the younger students clear up all 100 or so chairs before they can enter next lesson.
Friend: "how is your new girlfriend?" You:"She is pulling a complete Amersham school on me and making me clean up everything."

Friend: "So what school are you thinking of if you are out of options?" You: "I'm gonna have to join Amersham school, If you see a picture of my feet on the internet you will know why."
by Thefastestfrickinthewest October 29, 2019
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An Amersham Roadwork is performing doggy style in the middle of the zebra crossing between Harris and Hoole and WHSmith whilst wearing high visibility clothing.
Did you see Sandra and Tim did an Amersham Roadwork last weekend? Made me get home an hour late!
by My no no square January 22, 2019
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