wire burn

When you rub up against a metal wire (like a zipline wire) and you get a burn from it.

My friend told me to jump to get on the zipline and i rubbed my head against the wire and got wire burn.

swimable

Used when talking about a body of water (usually a swimming pool) when you can still swim in it but its not fully ready.

I could still jump in the pool but it not yet swimable.