1.) The act of saying one thing but then doing another
2.) Changing your mind out of nowhere.
3.) Making someone think something but then blind-siding them by giving them the boot.
1.) "No man, I am done talking to her" (then the person still dates her)
You have just gone John Kerry status on me.
2.) "Yeah, I'll go" (Then the person bails last minute)
3.) Having a few good dates with someone, then getting the "we need to talk" speech