Om Telolet Om began in Indonesia in 2016, when children waiting by roads in Java shouted the phrase at passing bus drivers. Om is a respectful way to address an older man, and telolet is the local name for the buses' custom musical horns. Videos of drivers answering with cheerful honks spread first on Facebook and Instagram, then worldwide in December 2016 as celebrities and DJs joined in. The clip remains a shorthand for bus culture, loud horns and a simple request that reliably gets a joyful response.