It's not your business.
OK, but I would never have paid attention to your license plate had you simply stuck with the ordinary one issued to you by Rev & Tax!
NO PIC, BUT HERE'S ANOTHER WINNER....
Keto or kieto, from the Spanish quieto, meaning "still, motionless."
Quieto (Spanish) and kieto (Chamorro) has more the meaning of physical stillness, which usually means the person or environment is also silent, but if one wanted to say silent, silencio (Spanish) or silensio (Chamorro) would be used.
*Si Yu'us ma'åse', Lucinda, pot i un na' tungo' yo' pot este na ehemplo!
So, "ti keketo" or "ti keketu" means "always on the run."