the.com/cleanup

means The act of tidying or restoring order to something that has become messy, disorganized, or contaminated.

from A straightforward compound of 'clean' (traced back through Old English 'clæne,' meaning pure or unsoiled) plus 'up,' used here as an intensifying particle suggesting completion — the same 'up' in 'eat up' or 'finish up.' The combined form emerged in the 1800s, with 'clean up' as a verb phrase predating the solid noun 'cleanup,' which took hold in American English around the late 19th century, notably in baseball slang before spreading to mean any thorough tidying.