[klak] 
| 1. | to make a quick, sharp sound, or a succession of such sounds, as by striking or cracking: The loom clacked busily under her expert hands. |
| 2. | to talk rapidly and continually or with sharpness and abruptness; chatter. |
| 3. | to cluck or cackle. |
| 4. | to utter by clacking. |
| 5. | to cause to clack: He clacked the cup against the saucer. |
| 6. | a clacking sound. |
| 7. | something that clacks, as a rattle. |
| 8. | rapid, continual talk; chatter. |
| clack (klāk) v. clacked, clack·ing, clacks v. intr.
To cause to make an abrupt, sharp sound. n.
[Middle English clakken, from Old Norse klaka, of imitative origin.] clack'er n. |