The idiom "dog days" refers to a period of time when the weather is hot and humid, often accompanied by intense physical labor or other strenuous activities. It can also refer to a difficult or challenging time in life, where hard work and perseverance are required to overcome obstacles.

The idiom "high on the hog" means to be overly confident or arrogant, often to an excessive degree. It implies that someone is behaving as if they are in a superior position or have more power than they actually do.

"Poles apart" is an idiom that means two or more things are completely different, opposite or not related to each other at all. It describes a complete separation between two or more things.

The idiom "no picnic" is used to describe a situation that is not pleasant or enjoyable to be in. It can be used to express disappointment, frustration, or dissatisfaction. The phrase can also be used to convey the idea that something is difficult, challenging, or unpleasant to deal with.

The idiom "backseat driver" refers to a person who is not the one driving but gives directions or advice, often unwanted or overly critical. It suggests someone who is passive and not taking an active role in the decision-making process.