In the word yutō (湯桶), "hot water bucket", the yu reading of 湯 is a kun'yomi, but the tō reading of 桶 is an on'yomi. Words which follow this kun-on pattern are called yutō yomi.
In the word jūbako (重箱), "nested boxes", the jū reading of 重 is a kun'yomi, but the bako (from hako) reading of 箱 is an on'yomi. Words which follow this on-kun pattern are called jūbako yomi.
A common word in this category is daidokoro (台所): kitchen.