The sick feeling you get when you are in a group or place where you are treated differently because of your social class, especially when you are of different social class from the rest of the group.
NOTE: This feeling is not restricted to people of lower class. People of higher class still feel out-of-place and therefore sick when they find themselve in a lower class dominated environment.
1. The treatment I got during the Company's holiday vacation was really classick, next year am not going with them again!
2. When you were hanging out with those dudes
from L.A., you were looking classick.