clump

noun

1. A cluster or lump; an unshaped piece or mass.
2. A thick group or bunch, especially of bushes or hair.

   “There are suitable clumps of gorse a little way back, sir. I anticipate that you would be quite safe there, or I would not suggest it, sir.”

   “clump of trees”

3. A dull thud.

   “She [Miss Climpson] asks questions which a young man could not put without a blush. She is the angel that rushes in where fools get a clump on the head.”

   “Thus, the myths of cinema and syndicated cartoon have served to unite the diverse races far more than the clump of the cricket-ball and the clipped rebukes and laudations of their masters.”

4. The compressed clay of coal strata.

   “clump-burned bricks”

5. A small group of trees or plants.
6. (historical)A thick addition to the sole of a shoe.

verb

1. (ambitransitive)To form clusters or lumps.
2. (ambitransitive)To gather in dense groups.
3. (intransitive)To walk with heavy footfalls.
4. (UK, regional, transitive)To strike; to beat.

   “There is his poor little cap hanging up on the door; and there on the table is the knife he chipped a piece out of through not minding the mark on the knife machine, and I clumped his head for him, poor lamb!”