Unit of measurement used to quantitatively define luck. Exists in the metric system of measurement. One jrrld is equivalent to 1 minor unlucky event per every 8 hours. Examples of minor unlucky events include, but are not limited to, losing 10 dollars.
It is important to note that this unit is NOT logarithmic.
"Holy moly, I just had a decajrrld of a day. I had to go to the hospital because I dropped a pen and it bounced straight into my eye..."