Hummm
Well, "pene" is the correct word
"Guevo" or "Guebo" is one of the courser words, together with "el ripio" or "el cabez?n" or El cac?" /.........
"Tolete", "" Sable" , "Soga" "Pepino" "Verga" "El Gran .....(you put a name to it"
Not that many.....
HB