köken: Either: *From the abbreviation of gue (written as ‘w’) and ketawa (written as ‘k’) as a way to reduce carrier fees. SMS language, or * Altered from wakakaka or wekwekwek (satirical laugh, imitated duck). Onomatopoeic
Vietnamcaha ha, há há, he he, hi hi, hí hí, hj hj
Bulgarcaбгг, ха-ха
Litvancacha cha cha
Letoncaha ha
Etimoloji
From quá-quá-quá or quiá-quiá-quiá, of onomatopoeic origin. Attested since at least 2002. The laugh originated among Brazilians, but today is also used by the Portuguese and other Portuguese speakers. Compare Korean ㅋ (k), which gave origin to English kek.