v. i. [ Chiefly Colloq. ] 1. To make a quick, hollow, metallic, or harsh sound, as by pulling hard on a taut string and quickly releasing it; of a raven, to croak. [ Webster 1913 Suppl. ]
2. To drop or sink down suddenly or heavily; to plump. [ Webster 1913 Suppl. ]
3. To play truant, or “hooky”. [ Scot. ] [ Webster 1913 Suppl. ]