挥毫

kè qián huī háo

客前挥毫

write in the presence of a guest

huī háo zuò huà

挥毫作画

take up a brush and paint

huī háo xiě shī

挥毫写诗

take up the brush and write a poem

tā wǎng wǎng jiǔ zuì hòu yī biān hū jiào yī biān kuáng zǒu chéng xìng ér huī háo

他往往酒醉后一边呼叫一边狂走，乘兴而挥毫。

He usually wrote for enjoyment after drinking, at the same time shouting and walking about.