Through thick and thin
Means: every relationship has good and bad times, right?weather it's a husband and wife, best friends, mother and daughter, or even co-workers.
If you want to endure your relationship for many years through good times and bad times, you can use this expression.
Through thick and thin is almost always used in a positive way, when you're talking about supporting someone, even through very difficult times, even in hopeless times, even when you think it would just be easy to give up on your relationship.
So thick and thin means good and bad times.
Examples:
Mary and Stive have been married for 50 years through thick and thin but they've had a wonderful life together.
I will love you through thick and thin, whatever happens in the future.
#idiom
