The 🔞 meaning is No One Under Eighteen. Emoji may also be referred to as Adults Only or No Adolescent Admission. It shows a round shield with the number 18, which is crossed out. Depending on the platform, the colors of the sign vary. Most of the background is black and the number 18 is white. The edge of the shield and the dash are also red. The 🔞 meaning is “for adults only” or “adolescents are not allowed”. If you have a WhatsApp group and you do not want minors to join this WhatsApp group, you could use the 🔞 emoji. The 🔞 emoji was approved as part of Unicode 6.0 and thus in 2010, and 1.0 added to Emoji 2015.