Webster's Revised Unabridged Dictionary · 1913

Lug

Lug (lug) , noun

[Swedish lugg the forelock.]

1.
The ear, or its lobe. [Scottish & Provincial English]
2.
That which projects like an ear, esp. that by which anything is supported, carried, or grasped, or to which a support is fastened; an ear; as, the lugs of a kettle; the lugs of a founder's flask; the lug (handle) of a jug.
3.
(Machinery) A projecting piece to which anything, as a rod, is attached, or against which anything, as a wedge or key, bears, or through which a bolt passes, etc.
4.
(Harness) The leather loop or ear by which a shaft is held up.
5.
(Zoology) The lugworm.
6.
A man; sometimes implying clumsiness. [slang]
Collocations (3)
Lug bolt (Machinery) , a bolt terminating in a long, flat extension which takes the place of a head; a strap bolt.
Lug nut (Machinery) , a large nut fitting a heavy bolt; -- used especially of the nuts used to attach wheels to vehicles.
Lug wrench (Machinery) , a wrench used to tighten or loosen lug nuts, usually a steel rod having a hexagonally shaped socket which fits closely over the lug nut; sometimes in the shape of a cross, having several such sockets, one at the end of each arm, to accommodate nuts of different sizes.

Lug (lugd) , intransitive verb

[Old English luggen, Swedish lugga to pull by the hair, from lugg the forelock.]

To pull with force; to haul; to drag along; to carry with difficulty, as something heavy or cumbersome. — Dryden
They must divide the image among them, and so lug off every one his share. — Collier

Lug , intransitive verb

To move slowly and heavily.

Lug , noun

1.
The act of lugging; as, a hard lug; that which is lugged; as, the pack is a heavy lug. [Colloquial]
2.
Anything which moves slowly. [Obsolete] — Ascham

Lug , noun

[Etymol. uncertain.]

1.
A rod or pole. [Provincial English] — Wright
2.
A measure of length, being 16½ feet; a rod, pole, or perch. [Obsolete]
Eight lugs of ground. — Spenser
Collocations (1)
Chimney lug or Lug pole , a pole on which a kettle is hung over the fire, either in a chimney or in the open air. [Local, United States] — Whittier