桁杨刀锯

háng yáng dāo jù

lit. stocks and knives

fig. any punishment equipment; torture instrument

桁

háng

cangue (stocks to punish criminals)

杨

yáng

poplar

刀

dāo

knife; blade; single-edged sword; cutlass (CL:把[ba3])

锯

jù

a saw (CL:把[ba3])