an activity used by guys who want to make their dings into DONGS,by constantly streatching the member in question for a whole year , so they can regain the confidence that his wife or girlfriend have stripped from them, when the guy finally discovered that the "brother" was not really her brother.
Tim: I am starting these "jelq" excercises to make my penis bigger.
Bob: oh! so I guess you finally found out that your wife really does not have a brother, and that guy that hangs around her is her hung lover.
Tim: what the....?