"Cnk ruhani espirin var canim"

Honey, you have a fascinating humor.

are you certain? I thought canim is life force, and ruhani is spirit?

canım:
1. darling
2. honey
3. sweety etc.

About ruhani you are right. Taken alone it would mean spiritual but not in this sentence. In that sentence I would translate it as fascinating or touching. Maybe touching could be better than the above.
The sentence itself is unusual. Very uncommon way of speech I would say. In fact this is the first time I hear the word ruhani in this way. Very unusal speech.

canim means "dear, darling, honey"

how is it unusual? I am not sure i understand how to interpret the sentence. It seems as if it could mean a few separate things.

No it can't mean a few different things it has the following meaning:

Honey you have a fascinating (touching, affecting, extraordinary) humor.

It is unusual because we don't use the word ruhani in the context it is used here. It's not a good Turkish.