Derja translation of 'كِيخْ كِيخْ'

laughing hard, dying of laughter

I told him a joke, and he is dying of laughter. حْكِيتْلُو نُكْتَا، وْ هُوَ قْعَدْ كِيخْ كِيخْ بِاضَّحْكْ