A leffler is someone who is a cocky
bastard but usually has good reason to be. Supposedly, the term originated in
Georgia around the late 1980's. A leffler is a shmo who can usually talk his way out of anything or into
everything.
Girl "Stuart why are you so cocky"
Stu "I am not cocky I am just confident"
Girl
slides down Stuart’s pants
Girl "Oh that’s why"
Stu "Care for another rusty
hook?"
Girl "
Ugh, you such a leffler..but OK"