To hupp (verb); To sever all contacts with a current romantic interest without any prior warning,
conversation or foreshadowing of the sudden severance.
A hupper generally lacks
emotional maturity, is a douchebag, and has
narcissistic personality disorder. The motivation for the act is by definition unknown.
The suspected reasons for hupping include the following: sudden loss of interest, fear of commitment, development of new romantic interest, a hectic lifestyle that leaves no time or room for romance, loss of forms of contact (mainly cell phones), amnesia, and/or death.