Calling meat grown in a lab clean meat is just a marketing gimmick that could potentially make people believe they eat natural grown meat.
I clean my fish, deer, moose, beef critter, fowl, etc... I clean them very well. (They are delicious.)
You do understand that you are the very definition of an outlier, right?
So it would OK if the term only confused you, since you are supposed to be confused, given that you do these things differently than 99.99% of the population.
But I think the term is confusing in general, not just to people who "kill and clean their own meat".