Disco Snakeskin Banging Club Dress

I don’t know where I got it or why I’ve never worn it (shopaholic probz) but it’s super cool and satin feeling. If I was still going to the club I would keep it but I have a 2 year old so that ain’t happening. Says size 5 but I’ve never heard of a size 5 in dresses. I would say it’s small or extra small.