3 ms·
https://en.wikipedia.org/wiki/Teaching_grandmother_to_suck_eggs https://en.wikipedia.org/wiki/Teaching_grandmother_to_suck_e...
by pgcj_poster 5y ago
https://en.wikipedia.org/wiki/Teaching_grandmother_to_suck_eggs https://en.wikipedia.org/wiki/Teaching_grandmother_to_suck_e...
- alexeldeib 5y agoTIL. Hadn't heard the phrase before.