Your favorite expressions/words in Japanese?

I just aware that there are concerns about the recent excessive usage of these expressions for describing almost everything (i.e. lack of vocabs among Japanese youngsters):

1. Emoi

2. Egui

3. Yabai

4. Maybe there are some more... @Moonlight ?

Moonlight:

sorry just saw this! yes there are more xD

Ah it's okay!! What are the others then? Would you mind to share some?