Noun
bolt out of the blue (plural bolts out of the blue)
Alternative form of bolt from the blue
Any working composer or painter or sculptor will tell you that inspiration comes at the eighth hour of labour, rather than as a bolt out of the blue. We have to get our vanities and our preconceptions out of the way and do the work in the time allotted. John Williams
After Reform Agenda's (RA) presidential candidate Col Kizza Besigye fled into exile fearing for his life after the bitterly contested election of 2001, a rebel group called the Peoples Redemption Army (PRA) sprung up like a bolt out of the blue. Source: Internet
When Tammy realised she was expecting boyfriend Mark’s baby in October 2017, it was a miraculous bolt out of the blue. Source: Internet