"Old fox" is a phrase used to describe someone who is experienced, cunning, and wise, particularly in a deceptive or sly way.
Sentences with «old fox»
He stood still, the very picture of a happy old fox - hunting horse. (si.com)
Liverpool's record new signing, Virgil van Dijk scored the winner for Jurgen Klopp's Liverpool against Everton at Anfield in a hard - fought victory against the wily old fox Sam Allardyce in the FA Cup. (theliverpooltribune.com)
BuzzFeed News found a transcript of the exchange online and was able to obtain video of it after asking Media Matters, which has archived old Fox News shows. (buzzfeed.com)