In fact, the fine dog originally refers to the famous Chinese dog "Chinese fine dog", which is named because of its extremely thin body and limbs. Small dogs are full of explosive power, but their endurance is limited and they cannot "fight" for a long time. So, "Can you do it? Fine dog! " Used by netizens to ridicule others' poor ability, almost meaning, etc. Of course, these are all netizens entertaining themselves. If it is not used properly, it is not good to have contradictions.