Is this sentence structure a valid usage?
When using the word "lash" to denote movement, it almost always refers to something pliable like a tail, whip, rain, etc. https://www.merriam-webster.com/dictionary/lash
It seems like you would be better served by something closer to a definition of "hit" or "strike": https://www.thesaurus.com/browse/strike
However, the english language itself is pliable or fluid, so use that artistic license!