Help me translate this for a friend?

I already have about 5 and you could be the sixth in the jacket/sack ( this word saco must have some regional meaning in costa rica) keep an eye out don't get too close to that girl cuz you're gonna have some serious problems with me, don't even think that I hang out with dogs in the street ( cara de picha, picha has some regional meaning from costa rica that I don't know, but it sounds like an insult) (and as for cono, im uming they mean co�o, which is an insult, like calling someone a or a motherfuc#er) don't get scared this is just a warning