dog ate my homework
Also found in: Acronyms.
the dog ate my homework
A hackneyed explanation for why one's homework is incomplete. A: "I can't tell my teacher that the dog ate my homework!" B: "Come on, a bad excuse is better than none."
(The) dog ate my homework
A poor excuse for something that someone has failed to do on time. (From an excuse a student might give for failing to turn in homework on time. Occurs in many variations.) The dog ate my homework, so I have nothing to turn in. (Used as an attributive.) Bob was late with his report and had nothing but his typical dog-ate-my-homework excuses.