Suck \Suck\, v. t. [imp. & p. p. Sucked; p. pr. & vb. n. Sucking.]

[OE. suken, souken, AS. s?can, s?gan; akin to D. zuigen, G. saugen, OHG. s?gan, Icel. s?ga, sj?ga, Sw. suga, Dan. suge, L. sugere. Cf. Honeysuckle, Soak, Succulent, Suction.]

1. To draw, as a liquid, by the action of the mouth and tongue, which tends to produce a vacuum, and causes the liquid to rush in by atmospheric pressure; to draw, or apply force to, by exhausting the air.

2. To draw liquid from by the action of the mouth; as, to suck an orange; specifically, to draw milk from (the mother, the breast, etc.) with the mouth; as, the young of an animal sucks the mother, or dam; an infant sucks the breast.

3. To draw in, or imbibe, by any process resembles sucking; to inhale; to absorb; as, to suck in air; the roots of plants suck water from the ground.

4. To draw or drain.

Old ocean, sucked through the porous globe. --Thomson.

5. To draw in, as a whirlpool; to swallow up.

As waters are by whirlpools sucked and drawn. --Dryden.

To suck in, to draw into the mouth; to imbibe; to absorb.

To suck out, to draw out with the mouth; to empty by suction.

To suck up, to draw into the mouth; to draw up by suction or absorption.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Sucking \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 (Zo["o]l.), the remora. See Remora. --Baird.

Sucking pump, a suction pump. See under Suction.

Sucking stomach (Zo["o]l.), the muscular first stomach of certain insects and other invertebrates which suck liquid food.

Source: Webster's Revised Unabridged Dictionary (1913)