Half smiling and blowing air sharply out of the
nose, usually brought on by a semi-funny
yet very dumb
text post on the microblogging website tumblr, or a situation that's ironically funny.
Person 1: *picks up
donut* Look, I'm like one of the cops!
Two police officers look over at Person 1
Person 2: *blows air out of
nose with a half smile*
Person 1: Oh stop tumblr laughing at me, will ya?