–verb (used with object), -ciled, -cil⋅ing or (especially British) -cilled, -cil⋅ling.
to delete, censor, correct, or abridge (written material) with or as if with a pencil having a red lead: His book was heavily red-penciled before it got clearance.
red-pen·cil (rěd'pěn'səl) tr.v.
red-pen·ciled also red-pen·cilled, red-pen·cil·ing also red-pen·cil·ling, red-pen·cils also red-pen·cils To censor, cut, revise, or correct with or as if with a red pencil.