Lump \Lump\, v. i. [imp. & p. p. Lumped; p. pr. & vb. n. Lumping.]

1. To throw into a mass; to unite in a body or sum without distinction of particulars.

The expenses ought to be lumped together. --Ayliffe.

2. To take in the gross; to speak of collectively.

Not forgetting all others, . . . whom for brevity, but out of no resentment you, I lump all together. --Sterne.

3. To get along with as one can, although displeased; as, if he does n't like it, he can lump it. [Law]

Source: Webster's Revised Unabridged Dictionary (1913)
 

Lump \Lump\, n. [Cf. OD. lompe piece, mass. Cf. Lunch.]

1. A small mass of matter of irregular shape; an irregular or shapeless mass; as, a lump of coal; a lump of iron ore. `` A lump of cheese.'' --Piers Plowman. `` This lump of clay.'' --Shak.

2. A mass or aggregation of things.

3. (Firearms) A projection beneath the breech end of a gun barrel.

In the lump,

In a lump, the whole together; in gross.

They may buy them in the lump. --Addison.

Lump coal, coal in large lumps; -- the largest size brought from the mine.

Lump sum, a gross sum without a specification of items; as, to award a lump sum in satisfaction of all claims and damages.

Source: Webster's Revised Unabridged Dictionary (1913)