What is Serial Sevens?
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1. A psych test measuring cognitive ability where subject counts backward from a random number in increments of seven.
2. Any difficult mental calculation.
Explained in The Contortionist's Handbook by Craig Clevenger.
"I can figure out how much we all owe if you just let me see the bill... it isn't serial sevens."
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it is whenu dont wanna give someone the finger that has pissed u off or give them the thumbs up eather. u ball your fist an poundit in t..
