balliage
n.— «After rinsing the color out, Norika applied thin wisps of highlights throughout her hair using a technique called “balliage” (basically, just sweeping highlights through the hair in a natural way; no chunks of color here).» —“The Early Show: Hot Hair Trends For Fall: Bold” by David Evangelista CBS News Nov. 20, 2006. (source: Double-Tongued Dictionary)
Further reading
Susan from Virginia Beach, Virginia, shares the phrase her mother used when the kids refused to eat: It’ll grow hair on your back teeth. This supposed motivator likely blends two older traditions: a German idiom, Haare auf den Zähnen haben...
To describe something tiny or insignificant compared with something vast, you might reach for phrases like a drop in the ocean or a drop in the bucket. In Mandarin, there’s an equally picturesque phrase that translates as nine cows, one hair, 九 牛 一...