Chickenshits

noun

1. Petty and contemptible thing(s).

   "Don't waste your time on that chickenshit."

2. A coward.

   "I told him I wasn't having his insults, and he just backed right down. What a chickenshit."

3. A low-ranking officer who lords over and needlessly makes life miserable for his underlings; a petty, abusive martinet.