qiān dāo wàn guǎ
(idiom) to hack (sb) to pieces (punishment in former times)
千
qiān
used in 鞦韆|秋千[qiu1 qian1]
刀
dāo
knife; blade; single-edged sword; cutlass (CL:把[ba3])
万
wàn
ten thousand
剐
guǎ
cut off the flesh as punishment