to ribbit

1 8.4

To make the croaking sound of a frog

: croar

Examples

I heard this class is "ribbiting."

Barely Lethal (2015)
As the sun set, I heard the frogs ribbit in the nearby pond.
During the summer nights, the sound of frogs ribbiting filled the air.
At the nature reserve, we paused to listen to the frogs ribbit in the evening.

ribbit infinitive

ribbited past

ribbited past participle

ribbiting present participle

ribbits third person singular

Ribbit as a verb comes from that same imitation of a frog noise. So to ribbit is 'to make the croaking sound of a frog'.