Derived from the Hungarian word 'Szumis' meaning something that is nice to sniff. Soomish can also denote something which is soft and snuggly, but also smells nice. Soomish can also denote a term of affection, where people can 'Soom' or 'Szum' another person in a gentle sniffing fashion, much the same way that animals would give each other gentle sniffs when bonding. Holding down ones 'loved one' and sniffing them exaggeratedly is known as a Soom Attack.
That bear is really soomish
I gave my daughter soomish on her neck
Your bum is really soomish
I want to soom you (aka szum - hungarian spenlling)