Question

I hope this is "serious" enough for you all, but let me warn you in advance, that it involves Daffy Duck.

Imagine that you had to phonetically transcribe the speech of Daffy Duck. Now, imagine that he were to say his characteristic phrase, "You're dispicable." Simple enough, until you get to the coda of the first syllable of 'dispicable.' Daffy's got a considerable (and unusual lisp) that makes him simultaneously articulate a theta and a raspberry. What would you call that segment? A voiceless interdental-fricative-labio-lingual trill?

Sorry. Cartoons have been very influential in my life.