I have no clue how you call these in english, but in german its "Blutpenis" ( blood-dick ) and "Fleischpenis" ( meat-dick ) ... free translated there.
You talk about a "Fleischpenis" if size does not grow more than 1,9 of what normal size is . For example: 10cm -> 18cm ( 3.9inch -> 7,09inch )...