nicknamed originating from ireland or scotland. a person who inherently fails at everything he or she sets out to accomplish in life, masking his or her mediocrity with a noticeably forced display of nonchalance and happiness whilst in public, donning the plastic and somewhat smug characteristic some describe as the 'perma-smile'.
in more intimate settings, the alone 'sheamus' can be found
whimpering in
fetal position over the
inescapable reality of his or her repressed sadness, often located weeping in front of mirrors or in the shower.
friend 1: man, tom sure is always happy!
friend 2: yeah, because he's a sheamus, dude. my
dorm walls are
paper thin, his loud
sobbing at night always keeps me up.