kuin Jokisen eväät
Finnish
Etymology
Many stories exist, including that one Jokinen was working as a machinist some time in the 1940s and had placed his lunchbox under a press that one of his coworkers turned on as a prank, causing Jokinen's lunch to get flattened and spill all over. The oldest attestations appear to be from the 1960s, in the longer form kuin Jokisen eväät Riihimäen asemalla (literally “like Jokinen's (packed) lunch at Riihimäki station”). It is likely that there isn't a single origin, but if there is, it is likely impossible to trace.
Phrase
kuin Jokisen eväät (literally, “like Jokinen's (packed) lunch”)
- (simile) (spread/strewn) all over the place or about