What is the meaning of Doghouse?

Any small house or structure or enclosure used to house a dog.

A structure of small size, similar to a doghouse, but offering useful shelter for a human.

Mechanically, an equipment cover with an opening, with a shape resembling a doghouse.

A difficult or demoralizing situation.

A traffic signal with five sections: two on the bottom, two in the middle, and one on top.

Any shabby or disreputable establishment.

The condition of being in the doghouse (subject to someone's anger or disapproval).

Source: wiktionary.org