What does looking down the barrel mean?

Related questions

1. Is contrastly a word?
2. Is Conflictingly a word?
3. How do you punctuate on the other hand?
4. What's more thesaurus?
5. Is on the other hand an idiom?
6. Is oppositely a word?
7. What's the word for opposite?
8. What is a synonym for conversely?
9. What does on that note mean?
10. What does on another note mean?

Tags

1. #stare
2. #words
3. #holding
4. #someone
5. #means
6. #staring
7. #looking
8. #along
9. #exactly
10. #phrase
11. #other
12. #barrel
13. #trying
14. #similar
15. #possibly
16. #pressure
17. #killer
18. #original
19. #yield