"Excellent skills" is a metaphor for showing off one's skills in front of experts, which means overestimating one's abilities.
This allusion comes from the "Preface to the Poems of the Wang Brothers" by Liu Zongyuan of the Tang Dynasty: "Use the ax at the gate of Ban and Ying to strengthen your appearance."
Li Bai, the great poet of the Tang Dynasty In front of the tomb, there are countless people who claim to be talented people, and they write many poems there. During the Wanli period of the Ming Dynasty, a scholar named Mei Zhihuan saw that the people who wrote poems were too overconfident, so he also wrote a quatrain after their poems, sarcastically saying: "Caishi River There is a pile of soil on the side. Li Bai's name is high through the ages. There is a poem about Lu Ban holding a big ax in front of the gate. "Cai Shiji" is located 20 miles northwest of Dangtu County in Anhui Province. On Zhushan Mountain, a piece of land at the foot of the mountain that juts into the river is Caishiji, which is the location of Li Bai's tomb. Lu Ban, also known as Lu Ban, was a great inventor of architecture and mechanics in the Spring and Autumn Period of my country. The meaning of this poem is: "A tomb by the Caishiji River! Lying there is Li Bai, a great genius and a great poet who will be famous throughout the ages! People coming and going all write a poem here. It's really It’s the same as showing off a big ax in front of Luban’s gate!”