은희:
맛이 갔다 = get old (food, computer, etc.)
정희:
님 좀 짱인듯 = You are awesome!
KoreanClass101.com:
8282 = call me (the sound is the same as 빨리, people used this when they had beepers)
이빨 = teeth (of an animal, apparently even Koreans sometimes accidently use this for human teeth)
Random:
놀구 있네~~, 삽질 하네~~ = Yeah. Right~
속어 = slang
은어 = secret language
합쇼-체 = -습니다-체 (high-level language)