hack = 'clever expedient'

[ADSGarson O'Toole]

 Jonathan Lighter wrote:
>
> 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

This use of "hack" seems to be a short form of "life hack".
Wikipedians attempted to trace the term "life hack" here:

http://en.wikipedia.org/wiki/Life_hacking

A 2004 talk by Danny O'Brien was an important nexus for popularization
according to Wikipedia.

Looking in the archives I see a similar response from me in 2012.

http://listserv.linguistlist.org/cgi-bin/wa?A2=ADS-L;cace17c6.1211D

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