to describe when your more progressive (or liberal) than someone on the political spectrum

From Beyonce's "Irreplaceable",

1.) Dismissed, dumped, broke off

2.) "Step aside," as in when a person is dumped: means to get out of one's face and life so that a new partner can be established.

3.) Indicating where the door is located, even if it is not actually located to the left -- "To the left" indicates that your exit is expected right fucking now.

You've been dismissed, dropped, cut off (as in a relationship or as a response to someone you don't want to talk to).

an expression Beyonce uses in her song "Irreplaceable" (written by NeYo) meaning homeboy can get his stuff, put it in a box, and leave. This signals the end of a relationship and that the man should pack everything he owns in a box and move to the left, out the door. Neyo described this expression to Tyra on the Tyra Banks show.

the universal order of passing a joint, a blunt or a bong when smoking weed

also used in the song "leavin'" by jesse mccartney. maybe he used it as a nod to beyonce

A person/ or persons considered to be of unsound mind often resulting in being dissed/dismissed and rejected by a select peer group. Often used as a nickname bestowed on someone who has been rejected "to-the-left".