pituco 64
It is a lunfardismo. I added a source to the definitions already given. In the 1930's the snobbish people in Buenos Aires was fashion using a sack ( 41 jacket; fabric pictures with pitucones ( patches ) at the elbows, although it was clear that the sleeves weren't broken. By this feature began to call them " pitucos " ( was prissy people, usually of high class, with modal affected ) and the word was still used after disappearing patched elbows fashion.
Like 0
* Only one "like" per meaning and day, the more "likes" the meaning will appear higher in the list