The act of taking a picture of yourself and at least one other person. Usually making a weird face and then posting it on a website such as Facebook, twitter, or instagram.
Girl 1: what are you doing?
Girl 2: taking a selfie
Girl 1: can I join?
Girl 2: ya we can make it a withie
When you're too nice at bedwards and you fucking clap every 5 year old on hypixel. Don't confuse it with trash with it syndrome where the 5 year olds kill you.
Wesley doesn't have nice with it syndrome, he just fell into the void 4 times in a row.