The Thai phrase 'จนทุกที่ (jon thúk thîi)' is used to express the concept of ubiquity or the presence of something everywhere or all over a certain area. It is very versatile and can be used with a variety of verbs and adjectives to indicate that an action or a condition is happening everywhere or is true for a whole area. These could include a physical place like a country or a room, but also a metaphorical area like an industry or field of study.