what does "bygones, sporto, bygones" mean?

Question

Sanctuary TV series, Episode "Out of the blue":

Will: Ok, but why bring us here? I mean, why not just bring us to the Sanctuary?

Foss: Clock was ticking from the second you guys got hit. If the venom was acftive in your system too long, there was less chance that we could save you

Virgil: He made a call. I opened my doors to friends.

Will [sarcastically]: Yeah, that was really sweet of you, Virgil.

Virgil: Bygones, Sporto, bygones. I got a big heart.

I am not getting it. Why does he call him "Sporto"? And why does he say "bygones"? Does he mean "let bygones be bygones"?

Answer 1

According to the Urban Dictionary, 'sporto' is a name for a 'jock type guy'. In the phrase, 'bygones, sporto, bygones', Virgil references the expression 'let bygones be bygones', shortening it to just 'bygones'.

So he says 'bygones, sporto' to mean:

let bygones be bygones, sporto¹

_{¹ or 'bro', 'mate' etc.}

The second 'bygones' is repetition for effect, commonly used in speech.