I think that's a word. . .

While walking around the grocery store this afternoon, Jeff and I were having a random conversation about how much hair we had when we were babies. I said, " I didn't have a sprig of hair on my head." Jeff had no idea what a sprig is! Did I make that word up? This scenario happens very often because I always use words and phrases from NC that he has never heard before like "He didn't have a STITCH of . . " or "I look a SIGHT today." So I'm just wondering if sprig is one of those words that most people don't use or if it's just one Jeff has never heard before.