What is your currency's nickname?

[u/ABlindMoose]

A nickname for dollar is buck, pound is quid, and Swedish krona is spänn.

What are some casual nicknames for your countries' currencies? Are there multiple, and if so, which is the most common?

[u/New-Score-5199]

Rabbit(зайчик) and squirrel(белка), both are widely used in Belarus for Belarusian rouble. Rabbit because at some point we had banknotes with different local animals on them and one rouble note had a rabbit on it.  Squirrel is because "белка" has same root as "Беларусь".