BT BB 73b(19) :הוה קא מנסרין מגרמיה קורי‏ : they were sawing beams from its [i.e. the fish's] bones
See the entire entry for grem, garmā n.m. bone; self

BT BB 73b(19) :הוה קא מנסרין מגרמיה קורי למבניה להנך מחוזי‏ : they had been sawing beams from its bone (i.e. skeleton) to rebuild those towns
See the entire entry for qwrh#2 n.f. beam