If you have dreamed about someone else using your toothbrush: Friendship issues may attract attention, but some frictions may also distract you from possible financial matters. To use a toothbrush in a dream means that someone you love will support you and lead a good life, be happy and add meaning to your life. To be disturbed by someone else's use of the toothbrush in a dream is a sign of good luck and a smile on your face.