1. He is the person who backbites.

2. A lot of backbiting goes on in our office.

3. All this backbiting is destroying company morale.

4. He was tired of all the backbiting and gossip in the office.

5. A feral world of backbiting malice, veiled threats, liars and blackmailers.

6. I do not enjoy pulling rank, but I do not tolerate unmanly gossip and back-biting.

7. He who blames one to his face is a hero, but he who backbites is a coward. 

8. His classmate do not enjoy his company because he always backbite others.

9. What they have done, however, is turn the sleepy municipal bond industry into a caldron of backbiting and finger-pointing.