Definitions by Jason Straan

string dem up 

historical useage related to punishment for criminal activity by hanging by the neck, however current useage has evolved the term to add a sexual connotation to indicate extreme anger or outrage.

Historical useage = Lets string (d)em up to the nearest tree.
Current useage = I'm so angry with those guys I'd like to string (d)em up (by their balls)!

string dem up by Jason Straan June 19, 2003