The smile you have after your friend says something funny or makes you laugh and you leave, making a fool of yourself as you walking around with big smile on your face. It is especially awkward if you look at someone with an after smile because they think you are smiling at them, but you are just looking with an after smile.
Person 1: <Insert Joke here>
Person 2: hahahahahhahhaa
(Person 2 turns around and walks away with an after smile)
(Two Strangers walk by Person 2)
(Person 2 looks at Stranger 1 with after smile)
Stranger 1: Did you see that creepy guy smile at me!
Stranger 2: Yeah! It was really creepy!
Person 2: hahahahahhahhaa
(Person 2 turns around and walks away with an after smile)
(Two Strangers walk by Person 2)
(Person 2 looks at Stranger 1 with after smile)
Stranger 1: Did you see that creepy guy smile at me!
Stranger 2: Yeah! It was really creepy!
by kljhgfds December 11, 2010
Leroy: dafuq? y u smiling that much?
Gym guy: I was at the gym today. It‘s the goddamn after gym smile.
Leroy: okay got it.
Gym guy: I was at the gym today. It‘s the goddamn after gym smile.
Leroy: okay got it.
by U5eriou5 September 19, 2019