a person who makes plans with a person/group but flops last minute. pulls a no-show or changes the plans entirely so that it does not include the person he/she promised to chill with before.
"Yea she said we should go to the mall today but she called just now and said she had something better to do and can't make it. She's such a ditcher!"
Phrase used by "The Situation" on Jersey Shore to ditch hooking up with a grenade. While the girl is in the bathroom you leave the room and head for the kitchen. Then find somewhere else to sleep.