The government has tightened access to the dollar and added levies, especially on overseas travel and luxuries. It created a temporary "soy" dollar in September to boost soy exports by giving producers more pesos for their dollar-based sales.

Some have popped up more organically: a so-called "Coldplay" dollar for paying sports stars or music performers in the country. The British band is performing ten concerts later this month. A "Netflix" dollar, meanwhile, refers to a rate elevated by various taxes on overseas streaming services.