他说他是我爸的女婿她说她是我妈的儿媳
[tā shuō tā shì wŏ bà de nǚ xù tā shuō tā shì wŏ mā de ér xí]
It translates to 'He said he was my father's son-in-law, she said she was my mother's daughter-in-law.' The sentence humorously or sarcastically reveals a complicated familial relation, hinting at marriage relations involving oneself, possibly referring to one's own children’s spouses.