son of a gun

Universal Words noun (AmE, informal, spoken) 1 a person or thing that you are annoyed with: My car's at the shop-the son of a gun broke down again. 2 used to express the the fact that you are surprised or annoyed: Well, son of a gun-and I thought the old guy couldn't dance! 3 (old-fashioned) used by a man to address or talk about a male friend that he admires and likes: Frank, you old son of a gun-I haven't seen you for months.