Strengthening and conditioning exercises focusing on the neck and trapezoids. Often advertised on late-night TV by people who want to be Chuck Norris. Incidentally, it is rumored that Chuck Norris has no need for necksercise.

Necksercise was invented by Al Gore.
The ninjas attacked out of nowhere. Jimmy sprung into action, instinctively attacking the warriors with his muscle-bound neck. "Don't thank me," he told the supermodels as the ninjas lay defeated. "Thank necksercise."
by Jin64 September 2, 2007
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