i-adjective
sickly-sweet; overly sweet
Wakayama dialect (Kansai-ben) adjective describing an unpleasantly excessive sweetness, often of food or drink.
このケーキ、甘ちちこくてよう食べんわ。
This cake is so sickly-sweet I can't eat it.
あの店のジュースは甘ちちこいから、あんまり好きやない。
The juice from that shop is overly sweet, so I don't really like it.