The use of âholidayâ to mean âa missed spotâ appears to be that rarity in English etymology, a word or phrase that actually has a nautical origin. The original use of âholidayâ in the âmissed a spotâ sense, back in the 18th century, was in reference to crew members painting the decks of a ship or âpayingâ (sealing seams with tar or pitch) its hull.
The knee jerk reflex is when a tendon above the kneecap is tapped with a reflex hammer, which causes the whole leg to involuntarily jerk.
(2) Hypoactive deep tendon reflex (knee doesnât jerk enough): botulism, Eaton-Lambert syndrome, Guillain-Barre syndrome (nerve inflammation), peripheral neuropathy, polymyositis, syringomyelia, tabes dorsalis, and other ailments too scary to pronounce much less have.