kǒu​tóu​zhī​jiāo

casual friendship

Senses

口头之交/ 口頭之交 kǒu​tóu​zhī​jiāo casual friendship

a surface friendship that exists in name only or is based on empty words; a relationship where the friends are not truly close

References

antonym 口头之交/口頭之交 腹心之友/腹心之友
antonym 口头之交/口頭之交 肝胆相照/肝膽相照