寄过相识
[jì guò xiāng shī]
Means 'Once acquainted' or 'Acquaintance posted'. Perhaps there have been interactions in some form between the users who bear these names, whether fleeting or profound. In another possible interpretation, someone named such wishes for sending (or entrusting) something special - might be thoughts or greetings - toward the people met in life, expressing fondness and grateful remembrance towards them.