To act like everything is fine and that you are happy, however, you're actually depressed.
My parents think that I am the happiest son they have, but I actually just put on a Cardboard Smile whenever I see them.
When a man "cock slaps" another person on both sides of their face. Leaving two lines up their face, resembling the smile of the joker from Batman.
I think that girl that had those bruises on her cheeks got a joker smile.
The way your dick looks like it's smiling after a great blow job.
Dude! After last night I'll surprised if my Smiling Jackson doesn't last all day!
1. Smiling for the sake of not looking sad, even if you're doing/feeling nothing.
2. A smile made by a baby in response to sounds/sights/etc. of things it likes.
1. Any politician's smile.
2. "Honey! Our baby just did her first social smile!"
When someone smiles all the time like a douchebag.
Look at that railroad welder cheesing!
I know I hate that douchebag smile!
When you get happy and you show it in your pants, not your face.
Collin hugged Madi and got a pants smile.