1.
lit. to make three visits to the thatched cottage (allusion to an episode in Romance of the Three Kingdoms sānguóyǎnyì三國演義sānguóyǎnyì三国演义 in which Liu Bei liúbèi劉備liúbèi刘备 recruits Zhuge Liang zhūgěliàng諸葛亮zhūgěliàng诸葛亮 to his cause by visiting him three times)
2.
fig. to make earnest and repeated requests of sb