Gusimbuka ibikinisho byimbuto ni uruvange rushimishije amahirwe yo kwishimisha nuburezi bigamije kwishora mubana nabakuze. Ibi bikinisho mubisanzwe birimo amabara kandi yimbuto imeze nkimbuto ishobora "gusimbuka" cyangwa guhaguruka iyo ikoranye, gukora imbaraga zishimishije mugihe cyo gukina. Amabara akomeye hamwe nibishushanyo mbonera ntabwo bishimishije gusa ahubwo yanatera ishusho y'abana