Which one do you like best?
Monkey business - mischievous or deceitful behavior.
Rat race – an exhausting and repetitive routine.
Cat burglar – a thief who climbs into buildings.
Top dog – the most important person in a group.
Cash cow – a dependable source of income.
Eager beaver – an enthusiastic hard worker.
Road hog – a dangerous driver.
Black sheep – an undesirable member in the group.