Sucking

Suck·ing

Sucking

a.
  1. 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.

Phrases & Compounds
Sucking bottle
a feeding bottle. See under Bottle.
Sucking fish
the remora. See Remora.
Sucking pump
a suction pump. See under Suction.
Sucking stomach
the muscular first stomach of certain insects and other invertebrates which suck liquid food.