AKA: Pan Am smile or Botox smile.

To deliver withering insults with a faux sweet smile. It's a socialized way for high ranking classy women/men who have to refrain from stooping to their haters level when in reality, they're desperately wishing that the person would be decapitated by a flying toilet carrying their own trots and any bullshit that the looseness of their bowels cannot carry.
A fake smile can also be used to replace the middle finger or a punch to the mouth to those who don't seem to understand that you could not care less of what they think of you. Their jealousy is a good indication that you must be an awesome person of the highest calibre to spark such fury, envy and outrage.
by The flying toilet February 07, 2018
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A fake smile is like a cover for what you really feel. Like putting a mask over your face. When you are really sad and don't want to express your feelings, you would sometimes use a fake smile to stop people from asking if you are alright.
She put on her fake smile and walked proudly into school, sat next to her friends, and acted like everything was alright.
by wanaii <3 October 02, 2019
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The kind of smile you give when you see someone you strongly dislike (i.e. a raging whore or someone's creepy boyfriend).
Steph: HEY!
Hali: *fake smile* heyyyy
by Jamaal and Boquifa February 03, 2009
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A fake smile is best used when around someone you hate. It can also be used to hide how sad you are; This definition is mostly used when in a crowded place (e.g) School, Party, A dinner, ect..
Nathan: Hi, how are you?
You: *Fake smile* Oh great, what about you?
by CrleTaan June 30, 2018
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