Its most diverse and most used derivative is it's verb form, 'jangle'. Strictly defined, this means to strike a male in the balls but 'jangle' has seen other uses resultant of its noun form, 'jangler' (see below). Thus, when used with a direct object (generally a name), 'jangle' means to strike said direct object in the balls. However, when used intransitively, it means to act like a jangler (definition two).
'Jangler' is the gerund noun form of 'jangle'. It has two meanings: first, it is more strictly defined as one who strikes males in the balls. Less strictly, however, it can also be used as a label for one who is equally distasteful as a nut-puncher, generally one who is arrogant, deceptive, or foolish.
"Whoa! Did you see how hard Frank just got jangled?"
"Look at Roger jangling around over there."
"Protect your balls; I hear there's a jangler about."
"Jon just told me he can bench more than that body-builder. What a jangler!"