from
The Collaborative International Dictionary of English v.0.48
Lubber \Lub"ber\, n. [Cf. dial. Sw. lubber. See {Looby}, {Lob}.]
A heavy, clumsy, or awkward fellow; a sturdy drone; a clown.
[1913 Webster]
Lingering lubbers lose many a penny. --Tusser.
[1913 Webster]
{Land lubber}, a name given in contempt by sailors to a
person who lives on land.
{Lubber grasshopper} (Zool.), a large, stout, clumsy
grasshopper; esp., {Brachystola magna}, from the Rocky
Mountain plains, and {Romalea microptera}, which is
injurious to orange trees in Florida.
{Lubber's hole} (Naut.), a hole in the floor of the "top,"
next the mast, through which sailors may go aloft without
going over the rim by the futtock shrouds. It is
considered by seamen as only fit to be used by lubbers.
--Totten.
{Lubber's line}, {Lubber's point}, or {Lubber's mark}, a line
or point in the compass case indicating the head of the
ship, and consequently the course which the ship is
steering.
[1913 Webster]