To crack; to make a sharp, abrupt noise to chink. [Obs. or Prov. Eng.]
To speak affectedly. [Prov. Eng.]
Knack
n.
A petty contrivance; a toy; a plaything; a knickknack.
A knack, a toy, a trick, a baby's cap.
A readiness in performance; aptness at doing a specific task; skill; aptitude; facility; dexterity; -- often used with for; as, a knack for playing the guitar.
The fellow . . . has not the knack with his shears.
The dean was famous in his time,
And had a kind of knack at rhyme.
Something performed, or to be done, requiring aptness and dexterity; a trick; a device.