In the doghouse
Meaning
Out of favor or in trouble, usually in a relationship.
Usage
Used lightheartedly to admit wrongdoing or ask for forgiveness.
Origin & History
Origin notes can vary by region and source; this page gives the commonly reported explanation and usage context.
Doghouses were small, undesirable shelters; being sent there implied punishment.
Used in early 20th-century America to describe being grounded or scolded.