the.com/spring cleaning

means A thorough seasonal clean-out of a home, traditionally done in spring, that clears winter's accumulated dust and junk.

from The phrase ties to real household rhythms: in many climates, winter sealed homes shut with coal or wood fires coating everything in soot and grime, so once the weather broke, doors and windows opened and the deep scrub began. Some traditions tie the timing to religious or cultural rites of renewal around the same season — Persian 'khooneh tekouni' (house shaking) and Jewish pre-Passover cleaning both predate or parallel the Western phrase. The exact English coinage is hard to pin to one date or person, but the practice — and the term describing it — solidified as a recognizable seasonal ritual by the 1800s.