-. blackjack, bumping hammer. de dos. aqua regia, sulfurico, sulphuric acid, oil of Tite argyrose oigentite argmtrosa / (miner) blackjack, bumping hammer. . de dos bocas, peen hammer. impermeabilizante TO, waterproofing material, impermeabilizar, to waterproof, impermeable, impermeable, impervious, water- tight.