In Gbaya, the notion of something being filled completely is emphasized in these verses with yɛtɛtɛ or zɛ́rɛ́rɛ́, both ideophones that express the fact of being filled to the brim, or overflowing.
Ideophones are a class of sound symbolic words expressing human sensation that are used as literary devices in many African languages. (Source: Philip Noss)