Grinfant
An infant that looks more like a small elderly person than an infant.
GrandMa/Pa + Infant
GrandMa/Pa + Infant
Guy 1: Did you see that baby?
Guy 2: Yeah, the Grinfant?
Guy 1: Looked like my Great GrandPa.
Guy 2: Yeah, the Grinfant?
Guy 1: Looked like my Great GrandPa.