Pesevällä
Pesevällä is a term that appears to be a misspelling or a highly localized, non-standard variant of a word or phrase. Without further context, it is impossible to provide a definitive definition. It is possible it is a phonetic spelling of a word from a specific dialect or language, or an invented term.
If "pesevällä" is intended to be a word in a known language, variations in spelling are common,
Alternatively, "pesevällä" could be a neologism, a newly coined word, or a term specific to a particular