ไก่กา

Etymology
From ; literally "fowl [and] crow".

The first sense originated from a 1998 quiz show, Lun Laeo Ruai, in which the phrase was used for "yes" and the present phrase was for "no".

Adjective

 * 1)  insincere; untruthful; false.
 * 2)  run-of-the-mill, ordinary; small, slight; inadequate, paltry; low, inferior.