Top Definition
A variation on the term, "Freshman 15," the "JNobs 15" is a colloquial term for body weight gained from plentiful calorie-laden lunches provided by the workplace.

While it is clear the "15" refers to the number of pounds gained by said meals, the origins of "JNobs" is somewhat elusive. It is popularly believed that "JNobs" is a reference to a popular biscuit made of rolled oats called "HobBobs" which has contributed to many an expanding waistline. Others believe "JNobs" to be a pseudo-fictional character akin to the Yeti or Loch Ness Monster.
"I just ate another meatball sub from Subway! Hello, JNobs 15!"
by sammyappel October 05, 2011

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