The care cup.
Shows that you don't care about what somebody says.
person1: "Look at ma 1337 pix!"
The care cup, whenever someone says something you don't give a fuck about just give em a care cup and they'll know to shut up. Usually only works on IM chats for example, MSN, AIM, IRC, etc.
Dude: Yo man you shoulda seen all the work the teacher gave us today your lucky you missed!