It is an adjective typical of the lunfardo, which in principle was used as "silly, idiot", but today it is also a way of directing someone with whom you have a very trustworthy deal and is not taken as offensive. In the entry 'boludo in Argentina' there is a possible etymology. See boludez , che , boludo , bolide , buenudo .
* Only one "like" per meaning and day, the more "likes" the meaning will appear higher in the list
