4 ms·"rat dog size"?by aisofteng 9y ago"rat dog size"?hobs 9y agoGenerally referred to as a "ratter", a type of dog bred to kill rats. Usually small in stature with a somewhat weasel like build. https://en.wikipedia.org/wiki/Ratter_(dog) https://en.wikipedia.org/wiki/Ratter_(dog)Gibbon1 9y agoSmall dog, 10-20 lbs.