hehe n0
Being completely sarcastic at someone, trying to turn something down not harshly and failing at it. If you are being asked out on a date by a hitchhiker hobo man with hello kitty bandaids in his beard, run away. If you are being asked out by a hipster who works at the local Chicken Biddy, say "hehe NO" and run away. see example below.
Jake (chicken biddy guy): Hey girl wanna go to the arcade sometime and play mario
You: hehe N0.
You: hehe N0.