Tsunetero from tsundere


I once heard a word and it’s “tsunetero” which is kinda a verb for tsundere
but when I googled the word I couldn’t find it anywhere and I’m questioning
myself if this word really exist or I made it up. I know what is tsun tsun and
tsundere and when I google these two words I can see results and meanings
except for “tsunetero” So is it really a word ?

P.s I heard it from anime but I can’t remember which one




If you can't remember where you heard it any answer is going to be a guess.

Mine is that it is a version of 拗ねる (suneru), possibly 'suneteru', for
'he/she's pouting/sulking'.

