Noun
common fly that frequents human habitations and spreads many diseases
Source: WordNetAn optimist is a fellow who believes a housefly is looking for a way to get out. George Jean Nathan
Once I spoke the language of the flowers, Once I understand each word the caterpillar said,Once I smiled in secret at the gossip of the starlings, And shared a conversation with the housefly in my bed. Shel Silverstein
A person who is stung by a bee fears a big housefly. African Proverb