Eight-character idioms are not common

① Punching and falling (boxing wrestling) ② Painting secrets (expressing feelings and displaying talents) ③ Catching cicadas and thundering (extreme heat and drought) ④ Grinding ears (intimacy) ⑤ Killing three scholars with two peaches (killing people with a knife) ⑤ Feeling sad (the content of the poem is sad and moving) ⑦ Storms and waves (the husband and wife are separated or the literati are frustrated) ⑧