When you message your crush on Whatsapp, but she/he ignored you.
(after someone reads your message in Whatsapp, there will be a bluetick at the corner showing that your message has been read.)
Most of the time, it means you are friend-zoned.
Great.
Pointer: Can we go out sometime for dinner? Or just a movie?
Belle: typing... Last seen at 11:17pm.
pointer talking to himself: OMG I have just been blueticked..