Chottu: a young person compared to your age, specially those who work in tapris and restaurants. e.g. chottu, do haap (half) chai leke aa.

Chuttya : Stupid..Chuttya he kya bey tu?????

Daav: Daav means someone on whom you have crush or you find intense. OR A girl whos having affair with OR a chosen girl (of course with/without her consent)
ex. Wo dekh apna Daav ja raha hai
ex. woh meri daav hai (she`s mine)

Dabana or Thoosna: to eat a lot. ex. kal Tanvir mein mast dabaya (or thoosa) murg-musllam.