Slang adjectives like cool ("That's real cool") tend to explode all over the language. They are applied to everything, lose their original force, and quickly di

Slang adjectives like cool ("That's real cool") tend to explode all over the language. They are applied to everything, lose their original force, and quickly die. I've often marveled at cool's longevity -- unlike the adjective sick (popular briefly in my social circle in 2005) which seems to have died out almost entirely.