1) Part of the Furniture
-Jim has been teaching so long every time I go to the school he is like part of the furniture.
-David has been working in that office so long he is like part of the furniture.
-Ben moved in with Brian five years ago, now he seems like part of the furniture.
Meaning:
If someone or something is part of the furniture of a place, they have been there for so long that they seem a natural part of it.
Etymology:
People don't regularly change the furniture in their homes, so guests associate the furniture with the memory of their home.
2) Cool your Jets
-Tim was angry with Jessica for leaving him but his friends advised him to cool his jets before he did anything rash.
-Ryan was really unsettled about his exams later that day so he classmates told him to cool his jets.
-Thomas was upset about getting a pay cut but he decided to cool his jets before discussing with his boss.
Meaning:
If someone is angry or unsettled, telling them to cool their jets means they should calm down.
Etymology:
cooling the gets on a plane stops it from moving.
3) take a potshot at someone or something
-Bill's co-workers took potshots at him for being fat.
-Jenny was tired of her friends for taking potshots at her new haircut.
-A lot of people took potshots at fred for drinking too much.
Meaning:
to criticize or censure someone or something, often just to be mean.
Etymology:
to shoot at someone or something, as with a shotgun. (A potshot refers to the type of shooting done to provide meat for the cooking pot.)