1. A Narcotics officer.
2. A
tattle-tale, someone who would tell parents/boss/police/authority figure/the man about a misdeed.
3. Someone who hates care-free fun, usually a similar type of person to 2. Will often
rain on your parade with facts about the environment when you get a new car. Will complain about practical jokes being mean, or play
devil's advocate when it is unecessary or nearly impossible.
4. A person who is short tempered or irratable. Will often shout at you for being on their lawn.