风雨难洗
[fēng yŭ nán xĭ]
The name '风雨难洗' translates to 'Difficult to Wash Away by Wind and Rain,' which implies a sense of something deeply ingrained, perhaps an unerasable memory or experience. The owner likely conveys that they have had certain significant or profound experiences which even the trials and tribulations of life ('wind and rain' as metaphor) cannot remove or change.