beetling noun 2adjective 1forms 1 noun2 •The process by which fabrics, etc. are beetled, or beaten with a mallet. •A jutting or protrusion.These gave place at last to things less and less unspeakable; till at last, from beneath the very brow of the beetlings and the menacings of the Terror Stone came the audible words of Pierre:— — 1852 adjective1 •Jutting or protruding, especially of a person's brows.As I anticipated, we had passed right through the precipice, and were now on the farther side, and immediately beneath its beetling face. — 1886 formsbeetlings