As a meaning of "sulk", 삐지다 is a dialect of 삐치다.
past tense of 삐치다 is 삐쳤다.
past tense of 삐지다 is 삐졌다.
So 삐졌다 is a dialect of 삐쳤다.
NB
삐지다 has an another meaning of "slice" 칼 따위로 물건을 얇고 비스듬하게 잘라 내다. which is a standard language.
2014년 10월 31일
2
1
0
So the correct form is 삐치다
삐졌다 or 삐지다 is a wrong way of using it.
And 삐쳤다 is a short form of 삐치+었다(past form)
To sum up,
present from 삐치다
past form 삐치었다(삐쳤다)
hope it would be helpful :)