babyhead
n.— «The group trudges onward, scrambling over teetering scree—rocks first the size of oranges and then as big as volleyballs (called “babyheads” in climbing lingo).» —“Former Texas lawmaker heads for the hills in quest to climb Colorado’s highest peaks” by Pamela LeBlanc in Twin Lakes, Colorado Austin American-Statesman (Texas) Aug. 5, 2007. (source: Double-Tongued Dictionary)
Further reading
People who hunt treasure with metal detectors have a lingo all their own. Canslaw means the shreds of aluminum cans left after a lawnmower ran over them. And gold dance? That’s the happy jig you do if you find something far more valuable than...
