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"msagro" is oragsm spelled backwards. Thus it is the opposite of an orgasm.

It is used to describe a person who is excessively ugly. A person so ugly, that they cause the speaker to have a "msagro"

The insult "msagro" is often followed by the phrase "Thank you. My pants are now cleaner than they were before."

"Did you see that girl across the street? Total msagro!"

*Walking past an excessively ugly person*
"Oh! Msagro!"

by KevinT November 14, 2006