In the world of cryptocurrency and digital assets a “Tumbler” is a software system that is able to obfuscate the trails and origins of funds. From a high level, the process of tumbling is sending funds to some pooled address which then do multiple complex processes of seemingly unrelated outputs and deposit the funds at some pre-determined wallet address.
Purposes of using a tumbler do not always have to be associated with criminal activity; tumbling can be use to de-taint assets, maximize personal privacy, and remain as anonymous as possible.