GDIT

GDIT is an acronym that stands for "go do it then" and is typically used in text messages or chat rooms. It is a quick way to challenge someone to go do what he has threatened to do or wondered about doing.

The acronym may be utilized as a response when someone notes that he could do a better job than another person. Or it might be used by a person tired and annoyed by someone who repeatedly says he's gonna do something but never does it.