The idiom "a leopard can’t change its spots" means that someone cannot change their behavior or character just because they want to. It is a warning that people's true nature will eventually reveal itself, and it is not possible to hide who you really are forever.

The idiom "grit one’s teeth" means to face a difficult situation or person with determination and courage, despite feeling uncomfortable or angry.

The idiom "stop by" is used to express the intention of visiting someone or something for a short time, usually to check on them, pick up or drop off something, or simply to say hello. It can also be used to invite someone to come over for a quick chat or to join in an activity.

The idiom "take for a ride" means to offer someone an opportunity or experience that they may enjoy, but which is actually a ploy to manipulate them or extract something from them.

The idiom "in black and white" is used to describe something that is clear, direct, and easy to understand. It implies that the information being presented is straightforward and there are no ambiguities or hidden meanings.