The benign and affable version of the potent and offensive Northern English insult: 'Daft Cunt'.
People unfamiliar with the connotations of the missing 'T's (especially Southerners) will most likely take it as an incredible insult therefore it is only recommended for use between friends, either as a greeting or during a mild and friendly exchange of so called banter.
If intended for use as an insult, the 'T''s must be re-inserted and it will instantly revert back to its highly unpleasant original form.
Someone who jumps from one relationship immediately into another one.
Serial monogamists can not stand to be alone and often suffer from vast commitment and insecurity issues.
Because they jump into relationships immediately after the previous one has ended, serial monogamists typically don't take the time to reflect on their behavior or why their previous relationships failed; thus, they end up making the same relationship mistakes over and over again.
Person 1: Damn, Dustin already has a new girlfriend?! It's only been two weeks since he broke up with his fiance! I think he's a sociopath.