出典:Wiktionary
出典:『Wiktionary』 (2025/11/07 20:17 UTC 版)
Of 19th-century origin. Used as an example both of an activity so simple that almost anyone could do it and of an activity so pointless that only a fool would do it.
pound sand (third-person singular simple present pounds sand, present participle pounding sand, simple past and past participle pounded sand)