A presumably homosexual person that frequently changes their mind as to whether they prefer to dance, make-out or whatever....with men or women. A.K.A. Bisexual
A certain boy dances intensely with another boy and then after that dances with and kisses unknown girl. Later on that night he kisses the first boy and refers to himself as a "slider". He also might look like Zach Effron.
by RB girl January 06, 2009