(deyim) Act against one's own interest, not know on which side one's bread is buttered, quarrel with one's bread and butter, kill the goose which lays golden eggs, throw a stone in one's own garden
kendi aleyhine olmak, kendi çıkarlarına ters davranmak
الواصلة
ken·di a·ley·hi·ne ol·mak, ken·di çı·kar·la·rı·na ters dav·ran·mak