A person displaying the effects of drunkeness after having consumed only minimal amounts of alcohol. This person has convinced him/herself that he/she is drunk. Hypochondriunks are often n00b drinkers who expect huge results from a small dose.
"Randy is such a hypochondriunk -- he isn't even halfway on his first beer but he's staggering around like he's been drinking all night!"
by Kickbutter June 9, 2009