Friday is No Panty Day. Don't know about it? Well then you probably have not been keeping yourself up to date with Twitter trends. The social networking site trended with the hashtag #NoPantyDay on Friday, and had hundreds of people confirming they would take part. The day has seen many Twitter users posting rather disturbing photos of themselves in the social networking site. They are quite shocking, and discretion should be used before venturing onto Twitter to find them.