River or lake beer. Beer that has been in an ice chest for a few hours and you enjoy while tubing, kayaking, swimming, motor boating, etc. on a river or lake.

It is important to note that this is NOT the same as a beach beer OR fishing beer; which are similar, but distinctly different beers for reasons I can’t fully explain.

I’ll adopt your word for a different definition: a beer from a non working refrigerator, cooled in the near freezing river. God damn Kyiv, it was 18c today and you still haven’t turned on the fridges in the (beach) produktis?