hack = 'clever expedient'

[Jonathan Lighter]

Context suggests that everybody knows this term but me:

"5 Hacks That'll Improve Your Life":

https://screen.yahoo.com/buzzfeed/5-hacks-thatll-improve-life-232544326.html?vp=1

JL

-- 
"If the truth is half as bad as I think it is, you can't handle the truth."

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The American Dialect Society - http://www.americandialect.org