Entry 3 senses · 2 variants Webster, 1913 Bolting · Bolt·ing · IPA /bˈoʊltɪŋ/ n. n. 01 n. A darting away; a starting off or aside. 1. A darting away; a starting off or aside. 02 n. A sifting, as of flour or meal. 1. A sifting, as of flour or meal. 2. A private arguing of cases for practice by students, as in the Inns of Court.(Law) [Obs.] Phrases & compounds Bolting cloth — wire, hair, silk, or other sieve cloth of different degrees of fineness; -- used by millers for sifting flour. Bolting hutch — a bin or tub for the bolted flour or meal