Ah, I see, so that's how it is! I understand now!Chi-mat-a, Chi-mat-a done it now...!
"chimatta" by itself sort of means [verb] was done regrettably, accidentally, or as an unfortunate consequence of something elseH'aww~... Chi-mat-a (she might've) went and did it...!
"yacchimatta" - approx. "I goofed!/I did it, unfortunately!"H'AWW~...!Tenkyuu!!
