Noun denoting the offspring conceived by a married woman while her husband is away for a period of months or years; e.g., at war or in the joint.
Moe: I don't understand how my wife had a baby a month ago. I mean, I'd been away for two years!
Joe: Well, Moe, that kid's a grudgebaby. Somebody had it in for you.
Joe: Well, Moe, that kid's a grudgebaby. Somebody had it in for you.
by Ernest Peabody August 2, 2006