SeaHorse-Mehorse

I have a little sister, her name is MJ. She's 5 years old.

When talking to my boyfriend on the phone, I referred to him as Boogy-woogy. And several minutes later as Pickle-wickle.

My sister (who adores him) wanted to make her own pet name for my boyfriend. I asked her what name did she think of.

SeaHorse-MeHorse!