Suck"ing, a.
Drawing milk from the mother or dam; hence, colloquially, young, inexperienced, as, a sucking infant; a sucking calf.
I suppose you are a young barrister, sucking lawyer, or that sort of thing.
Thackeray.
Sucking bottle, a feeding bottle. See under Bottle. -- Sucking fish Zool., the remora. See Remora. Baird. -- Sucking pump, a suction pump. See under Suction. -- Sucking stomach Zool., the muscular first stomach of certain insects and other invertebrates which suck liquid food.
© Webster 1913.