Place it right after the bad suggestion in your edit, so it acts as the answer, then follow it with a confused reaction sound when the other person questions your choice, keeping the exchange short and centred on the refusal.
Bu Ses Hakkında
This short spoken line delivers the sentence 'I'd rather lick a frog' in a blunt, disgusted tone, lasting just over two seconds. It lands as a funny, exaggerated refusal, the kind of gross comparison that makes a bad option sound even worse. The line comes from the episode titled Pinkenstein.