呦呦切克闹她是我的你别闹呦呦切克闹他是我的你别闹
[yōu yōu qiè kè nào tā shì wŏ de nĭ bié nào yōu yōu qiè kè nào tā shì wŏ de nĭ bié nào]
'Yo yo che k nao she shi wode ni bie nao yoyo che k nao he shi wode ni bie nao'. A song lyric turned colloquial phrase. This internet-speak implies ownership in a teasing or playful way and could mean anything ranging from possessiveness to just fun banter with someone.