smurfing
after drug enforcement officers successfully regulated the sale of ephedrine and pseudoephedrine, many large-scale producers of crystal meth were force into smurfing
buying up the maximum allowed quantities of pseudoephedrine-based medicines at one location after another for use in the production of crystal meth
"after drug enforcement officers successfully regulated the sale of ephedrine and pseudoephedrine, many large-scale producers of crystal meth were force into smurfing" What is the definition of "smurfing"?