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1.
1. n: German; a week of partying leading up to Mardi Gras. Anything goes this week.
During Fashing I went to 18 parties, was hung over six days, and had 248 alcoholic drinks.
by rentastrawberry October 26, 2004
 
2.
The act of having sex.
pronounced "FUH-SHING"
"Mary, are you an Ed gonna fa-shing! tonite?"
by whadaskankkk September 08, 2008