junk bond

noun
1
a type of bond that pays a high rate of interest because there is a lot of risk involved, often used to raise money quickly in order to buy the shares of another company
اوراق قرضه کم‌اعتبار, اوراق بادرآمد بالا ولی ریسک‌دار, اوراق قرضه پرریسک, اوراق قرضه کم کیفیت