What's the use of がよ in 「ダサ坊がよ」


For clarity:  
Two delinquent gangs were fighting but one of them was way weaker than the
other. After getting beaten up the strong gang says:

> 気合いも何もねえ ダサ坊がよ

  1. What's がよ?
  2. What about 気合いもなにも? What does it mean? I would translate it as "You don't have fighting spirit or anything. You're lame brats."




>   1. What's がよ?
>

If you're sure that this が is not a subject marker, then this が should be a
derogatory vocative particle (see: [Why is が added at the end of
この小娘が?](https://japanese.stackexchange.com/q/60514/5010)) and よ is a sentence-
end particle. So Xがよ is like "Damn you, X" or something.

>   2. What about 気合いもなにも?
>

～も何もない is a set phrase. See:

  * [How to understand い adjective + ある？ What is ある doing here](https://japanese.stackexchange.com/q/64794/5010)
  * [Meaning of もクソも in 何かもクソも寝るだけだよ](https://japanese.stackexchange.com/q/76339/5010)

So the basic meaning is "this is not a matter of 気合い". Perhaps this guy wanted
to say "You're way too weak physically, and just having a fighting spirit
means nothing"?

**EDIT:** On second thought, I noticed this 気合も何もねえ could be a simple relative
clause that modifies ダサ坊 (i.e., "You lame brat who doesn't even have a
fighting spirit!"). See the context.




>   1. What's がよ?
>

If you're sure that this が is not a subject marker, then this が should be a
derogatory vocative particle (see: [Why is が added at the end of
この小娘が?](https://japanese.stackexchange.com/q/60514/5010)) and よ is a sentence-
end particle. So Xがよ is like "Damn you, X" or something.

>   2. What about 気合いもなにも?
>

～も何もない is a set phrase. See:

  * [How to understand い adjective + ある？ What is ある doing here](https://japanese.stackexchange.com/q/64794/5010)
  * [Meaning of もクソも in 何かもクソも寝るだけだよ](https://japanese.stackexchange.com/q/76339/5010)

So the basic meaning is "this is not a matter of 気合い". Perhaps this guy wanted
to say "You're way too weak physically, and just having a fighting spirit
means nothing"?

**EDIT:** On second thought, I noticed this 気合も何もねえ could be a simple relative
clause that modifies ダサ坊 (i.e., "You lame brat who doesn't even have a
fighting spirit!"). See the context.

