I've heard from a surfer that when in Hawaii
one does not take the 'Hang Lose' lightly :D
I like to use them to indicate 'hang up' to people who are driving, but only old folks get it and they aren't the main transgressors.
(
Smoked Oysters Yes, magick helmet! And I will give you a sample!,
Sat 17 Sep 2011, 9:40,
archived)