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1 definition by
swtcaroline
PSO
Potential Significant Other, referring to an individual not quite your significant other. Could
pertain
to a date, a crush, an
unrequited
lover,
a stranger
you'd like to marry, etc.
My PSO totally asked to
borrow
my
pen in
calc
today.
by
swtcaroline
December 14, 2006
Flag
Get the
PSO
mug.