bucket baby
n.— «Not for bucket babies…This is a great car seat! We borrowed an infant seat from a friend for our daughter’s first two weeks, but disliked it because she slouched down, her head flopped over, and the straps didn’t seem to secure her very well.» —“Not for bucket babies…“ by kimmhunt Epinions June 29, 2001. (source: Double-Tongued Dictionary)