the dog ate my homework
(cliché, also attributively) A stereotypical unconvincing excuse for not completing school homework, or (by extension) not meeting one's obligations.
The condom broke. I know how stupid that sounds. It's the reproductive version of the dog ate my homework. Jennifer Weiner
New Rising Sun: Leader O'Cola: The Dog Ate My Homework: Our current surge of cases literally started in the Dakotas and radiated from there. Source: Internet
The Dog Ate My Homework: OptionC: NeedlesslyCanadian: Exluddite: I support the banning of leaf blowers even if it is on the flimsiest of pretenses. Source: Internet
Greil: The Dog Ate My Homework: Jesus. Source: Internet
The 20-year-old will be familiar to the CBBC audience as he's a regular on the show The Dog Ate My Homework. Source: Internet