The idiom "beat the heat" refers to finding a way to avoid or escape from an unpleasant situation, person, or place. It can also mean seeking relief from something that is difficult or unbearable, such as a difficult job or an unwanted guest.

The idiom "busy as a beaver" is used to describe someone who is extremely busy and industrious, working very hard and with great energy.

The idiom "bundle up" means to gather someone or something together and protect them from the cold or bad weather by providing additional clothing layers, often in the form of blankets or insulation.

The idiom "make ends meet" means to earn enough money or have enough resources to cover one's expenses, and often implies just barely managing to do so. It can also mean doing whatever is necessary or acceptable to make ends meet, even if it is not ideal or desirable.

The idiom "lost on" means to be confused, puzzled or unable to understand something. It can also mean to take no notice of something or not care about it.