have two left feet

a crushing defeat a lame duck a paper tiger all fingers and thumbs an Achilles' heel anemic as weak as a kitten butterfingers cack-handed clumsy effete elephantine eunuch feeble feebleness

الضعف والعجز وسوء الحظ المهارة والكفاءة والتأهيل القوة والبأس والعنف