Up one's sleeve

fadi99

up your sleeve, up my sleeve, etc.


Definition
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hidden, secretive, concealed


Example
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\"I was told you are organizing the surprise party for Jim. What do you have
up your sleeve?\"


Origin
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This is actually a short form of \"an ace up one's sleeve\", which refers to
playing cards, and cheating. As an Ace is the biggest card in most card
games (poker, etc.) if you can hide an Ace and can produce it at the right
time, you will win! And one of the easiest places to hide an Ace is up in
one's sleeve. For that reason, most card magicians now wear short-sleeve
shirts, or roll up their sleeves before performing their card tricks.