Used to show that you think that smth is impossible (1) or to express surprise (No way! (2)). “No way(1) will Nick be able to finish his project on time. I just saw him drinking whiskey in the break room.” “No way!(2)”

Used before telling someone exciting news. “Guess what? I just saw Terry and he told me I am getting promoted next month!”

Used as a reaction to smth that seems unbelievable, outrageous or ridiculous to you. Rudy saw the peanut butter that was smeared all over the wall and exclaimed, “You’ve got to be kidding me! Martha! Come here and look what your dog has...

Used as a very strong "yes" or as an indication of complete certainty about smth. “Are there morons who still think that this news is fake? You betcha.”

Used to express complete agreement or certainty about smth. “Will you join us tonight at the restaurant?” “You bet!”

Used to pinpoint, emphasize or summarize the main idea you want to get across (esp. after ranting or expressing your opinion not as clearly). “You told Kelly about your past and she used it against you. You gave Ned money and he vanished...

Used as a reaction to someone’s words (when you think that what’s been said is very obvious). “I’m starting to think that Ronda married Larry for his money…” “Well, duh…”