1. [late 19C+] (also doghole) any small structure that seems to resemble a dog kennel.
2. an unpleasant place, irrespective of size.
3. [mid-18C–1930s] (US Und.) a prison; a solitary-confinement cell.
4. [1920s–50s] (orig. US) a double-bass; a bass-player.
5. [1930s] (US prison) a watchtower.
6. [1930s+] in fig. use, a place of disgrace or punishment; sometimes spec. of marriage; usu. as in the doghouse
7. [1940s+] (US prison) the protective custody unit in a prison.
8. [1990s+] (US campus) a romantic relationship.
[1930s+] (orig. US) in trouble, out of favour.