Often seen abbreviated as "YMMV". Loosely defined, it means that I tried something and it worked like this for me, but I don't guarantee it will work the same if you try it.
In New Zealand we use the MetricSystem, so please don't tell us how many miles you get to the gallon cos that really confuses me. I prefer to know how many kilometres you can get from 10L.
("YKm/LMV"? No sir, I don't like it.)
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