Wiktionary
weak sisters
n. (plural of weak sister English)
Usage examples of "weak sisters".
Quinn Fitzpatrick and Allison Sherwoods are weak sisters, but the others are concert-fit.
Now that there was no longer any need for Nordbrandt to jolly the weak sisters along, the Movement had rolled up its sleeves and gotten down to the serious business of kicking the accursed Manties out of Split and restructuring Kornati.