Scrooge goes "Wak! Wak! Wak!" like a particularly irate Donald, in a situation when even a single Wak! would be highly questionable.
Due to its mention in the comments on GeoX's "Duck Comics Revue," I was just looking over the last couple of years' posts on your "Disney Comics Reviews," and under the review of "The Inner Earth Adventure" (August 24, 2016) I found a comment by Ramapith including this line: Lockman's ducks all frequently laugh "Wak! Wak! Wak!"
