Her name is nada so everyone calls her noni.. her twin’s name is huda so everyone calls her huddiii and my brother is called gaabu or seebann by myself…
gaaabu because when he was very young he used to watch flintstones and went yabaa daaaba dooo all over the place so he himself started calling himself gaabu ..
and seebann because his name is haseeb so I call him seebann! 
as in, in punjabi: seebann aithey ayii’in!!!