What does "やればいける” mean?


Context is 2 friends talking with each other after a night of drinking. The
other friend drunk called her ex-boyfriend. The other friend said this.

> だから言{い}ったっしょ
>
> 酒入{さけい}れてガーッとやればいけるって

Is this the same to やれば出来る? I'm also not sure how ガーッと is used here.

Like "You can do it if you're drunk."




Context is severely lacking, and I have no idea what this だから refers to, or
what they are actually talking about. Still, I can say this sentence has
nothing to do with the idiom やればできる. This やる is part of ガーっとやる described
[here](https://japanese.stackexchange.com/q/65737/5010).

  * 酒を入れる = "to take alcohol" or "to make someone take alcohol"
  * ガーッとやる = "to do (something) vigorously/swiftly/strongly"
  * いける = "will go well", "can do it", "will be okay"

So the translation should be "If you drink alcohol and do it strongly, it'll
be fine" or "If you make him drink and do it in one go, you can do it", or
something along these lines.

