A semi-furry is a person who likes some things related to furries. But dislikes the rest of furry related things.
An example of one is someone who likes a furry avatar. But does not like other furry related things.
A more in depth example is (person) likes protogens and dislikes all other furry species.
No I’m not a furry. I’m a semi-furry.
A semi-furry is an humanoid character that possesses animal features.
Person 1: Who's your favourite semi-furry character? Mine is Siren from Castle Swimmer. I really like mermaids.
Person 2: Cool. Mine is Bowser from Super Mario.
Person 1: That's not a semi-furry. That's a furry.