We found one dictionary that defines the word utter a yawn:

▸ Words similar to utter a yawn ▸ Usage examples for utter a yawn ▸ Idioms related to utter a yawn ▸ Wikipedia articles (New!) ▸ Words that often appear near utter a yawn ▸ Rhymes of utter a yawn ▸ Invented words related to utter a yawn