Top Definition
The process by which things reduce or decrease in value until they cease to exist.
My penis was victim to atrophy at the sight of lesbian pornography. ewww, girls are sick
by Dustin Belleau September 06, 2003
1 more definition
atrophy is when youre too lazy to get up and work out or do anything and your whole body seems to morph from being totally ripped to looking like the marshmallow man.
after having mono for a month and a half, i looked like a diferent person because all my muscles had atrophied.
by wowthissucks July 05, 2005

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