Mine was somewhat odd "real name"a brown of china town(it rhymed lol no idea in he'll where it came from ) and my poor dsis got poppy wopsy the poor sod
More often as we moved into the teens we shared "oh god what did she do this time? " said so often it was most definitely a nicknAmerican
Ds1 was shortround as he's named after Indiana Jones (yes I know) and shortround is a nickname in that but I stopped it because I was worried he would get a complex ( pfb lol) he is now my pickle and ds2 is pixie ....all hell is lethe loose of I mix those up !