Top Definition
Acronym: Single Income Minature Pet Owner.
A designation for marketing groups and social studies. An urban phenomenon, seemingly spreading to high density metropolises worldwide, probably starting in Manhattan. Pets are usually adorned in designer apparel, showing the high earning capacity and disposable income of said Pet Owner.
Have you seen Julian parading his mini Pomeranian around in its fur coat?
I have Bruce. Julian's such a SIMPO!
by Chopes January 16, 2011

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