Top Definition
Ugmosis

Ug-mo-sis (Uhg-moh-sis)

-noun

1. A tendency of ugliness to pass from one friend to another.

2. A subtle or gradual absorption or mingling of one friend's poor looks to another through association.
"I thought she was hot until her friend showed up and ugmosis set in."
by J Mazon May 13, 2010

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