洋葱他催我泪因为你拨她心
[yáng cōng tā cuī wŏ lèi yīn wéi nĭ bō tā xīn]
'The onion made me cry, because you touched her heart.' An analogy for something seemingly ordinary causing one to weep due to strong, perhaps hidden feelings provoked by an intimate touch or connection from another person.