The idiom "top dog" is a common expression used to describe someone who is the best or most respected among their peers. It can also refer to someone who is in charge, has power, or is highly influential.

"Not at all" is an idiomatic expression that means "not at all, not even a little bit". It can also mean "absolutely not, by no means", or "by no stretch of the imagination". This expression is used to emphasize the negation of something.

The idiom "tall poppy" is a figurative expression that means someone who stands out above the rest, usually by being arrogant or boastful about their achievements. It can also refer to someone who is easily recognizable or targeted for their position of authority or power.

"High roller" is an idiom that refers to a person who is successful, wealthy or important. The phrase can be used to describe someone who has a high social status or is involved in activities that require a lot of money, such as gambling.

The idiom "from now on" means starting from the present moment or time, usually indicating a change or shift in something. It can also indicate that something will begin or end at a specific point in the future.