A highly derogatory phrase which replaces the subject of a person's sentence to form a base and unoriginal form of retaliation (for those with difficulty thinking of witty comebacks).
"That was a great sandwich."
"Ur Mom was a great sandwich! Oh! Diss!"
Expression of agreement, but with great apathy and obvious lack of interest. Most effective when used in an IM conversation after someone has typed five whole consecutive paragraphs.
"Geez! Like, I was SO pissed at him. I mean, like he SAID he'd call and I was all like psyched to talk to him last night but he was a TOTAL JERK and I totally waited by the phone all night for him. Like, who DOES that?? I am definitely not going out with him. He's totally dumped. I mean, don't you agree? Don't you think so? Like, put yourself in my shoes, I felt SO mad. He basically stood me up over the phone. I mean, HELLO! I have BETTER things to do than hang around all night waiting for the phone to ring. You know what I mean? You know what I mean?"