A hippopotamus that sits in water while giving the observer a sideways, skeptical glance. Generally appears in motivational poster form whenever questionable facts are posted.
I'dtry giving an example, but skeptical hippo would question the validity of it.
Someone who is a sweet friend, or someone who you like to call a nice person. Cats are usually categorized as adorable, so calling someone a sweetcat is a nice compliment to call someone.
Kathy: "Aww shes such a sweetcat"
Janelle: "Oh Ikr, she is so kind and generous"
Kathy: "Yeah, i wish i was called a sweetcat"