The word "granuha" is used colloquially to describe someone who is a bit naughty or mischievous. It is often associated with a person who is cunning, a bit rebellious or who manages to get their own way, sometimes in a slightly mischievous or humorous way. It does not usually have an negative connotation, especially when used in a light or affectionate tone. In the context of a T-shirt, "granuha" could be a fun and light-hearted way of referring to someone with a free spirit and a touch of daring.