Half a slut is a girl who sleeps around but only allows oral (and sometimes anal) while saving the vagina for her husband/boyfriend.
by Floackle March 04, 2008
A girl(or boy just change the word) who once dated someone but broke up with them. This same someone still longs for the girl (or boy) but they constantly refuse making them an "off-again girlfriend"
Even four months after I brok up with Rob he still asks me out, but do I accept? Of course not. I'm his off-again girlfriend and don't want to change that.
by floackle July 30, 2008