
1) And so on, when tripled 2) Blah 3) Blah alternative 4) One-third of et cetera 5) Repeated word on Seinfeld 6) Said three times, empty talk 7) Seinfeld chatchword 8) Third of a Seinfeld line 9) When repeated, et cetera 10) When said thrice, and so on 11) When tripled, et cetera 12) When tripled, etc
Found on
https://www.crosswordclues.com/clue/yada

This is a condensation of iya da, and simply means yucks. No! I don't like it! I hate it!
Found on
https://owlcation.com/humanities/250-anime-japanese-words-phrases
No exact match found.