The only English idiom I can think of is "... five-finger discount." A "discount" is a reduction in the price of some item, as in: "All shoes are on sale at a 20% discount." And so, a "five-finger discount" is how a shoplifter describes how much he paid for an item -- zero. That is, he concealed it and left the store without paying. When asked by friends how much he paid, he just replies, "Five-finger discount."

in addition those who answer your question five finger is also known as meryjane or dope. cowboy...

any of several plants having palmately compound leaves with five leaflets, such as the cinquefoil.

the third hand，it means the thief

**Most common [American]** To steal something. When you steal, you grab the item with your hand - five fingers. "I got this hat at a 5 finger discount at the store!" There are different meanings in different countries, but in American English, the above is the common usage. See also (common non-American English usage) http://www.urbandictionary.com/define.php?term=5%20finger%20discount # 5 finger forehead # 5 finger hug # 5 finger shuffle # 5 Finger Slippy # 5 Finger Special # 5 Fingered Spear # 5 fingers