[Imitative.] a. A half-suppressed laugh. b. A sharp squeaking sound.
1882. F. Anstey, Vice Versâ, iv. 64. Little gurgles and squirks of laughter.
1902. P. Fountain, Mts. & Forests S. Amer., ix. 260. [A thrush] occasionally uttering a squirk to attract my attention.