
This is called money folding. Sometimes also called bill folding, or banknote folding, or other such derivative terms. I'm not really sold on the Moneygami name- there's a real trend lately to do such things, primarily because people figure out "oh, that must be money origami" or something to that effect.
Actually "moneygami" name is a little dumb because the "gami" (kami) part means "paper", and the "ori" (oru) part means "to fold". So we're talking "money paper" here as a meaning. "Orimoney" doesn't quite roll off the tongue the same way, though, so I guess it's unavoidable. Loan words from other languages and how they eventually get sqeezed into new boxes is an ever-interesting phenomenon).



