Not P but another DFW question

[Michael Bailey]

Mike Jing wrote:

>*From "Authority and American Usage":
*
As it is, though, liberals’ vanity tends to grant conservatives a monopoly
on appeals to self-interest, enabling the conservatives to depict
progressives as pie-in-the-sky idealists and themselves as real-world
back-pocket pragmatists.

What does "back-pocket" mean here?


A lot of people keep their wallets in their back pockets.

Not me, my chiropractor friend told me it affects sitting posture.
Also, it never slides out accidentally. :-)