N + 쟁이

쟁이 is attached to certain nouns to mean someone who does the particular thing(the noun 쟁이 is attached to), particularly if they do it frequently, or they are known for doing that thing (whatever the noun is). Note 쟁이 is usually attached to particular nouns, but sometimes speakers can create their own compound word by attaching 쟁이 to a noun which it's not normally attached to, though depending on the word it may sound awkward.

• 멋쟁이 o
• 수다쟁이 o
• 고자질쟁이 o
• 욕쟁이
• 고집쟁이 - stubborn person
• 공부쟁이 - someone who always studies
• 아부쟁이 - an asskisser (slang) o
  • 아첨쟁이 ? - an asskisser (아부쟁이 is used more often)
• 질투쟁이 o
• 거짓말쟁이
  • 구라쟁이 - slang for 거짓말쟁이