A vibrator slip is a slip with a vibrator . The slip vibrates by means of a small bullet vibrator, which is sometimes removable . The brief can be boxer shorts, thong, hipster or other type of underwear. A slip with a vibrator is also called a vibrating pantie. This is a popular term that came over from the United States. The vibrating pantie is a discreet and exciting sex toy for women who find it exciting to get aroused in public . But it is also a toy for couples to make foreplay more exciting, for example. Many models have a remote control that she can give to her partner to operate.