Used as a verb by some gay men to describe the attitude and actions necessary to make something fierce. Often used when an outfit or object or action is wayover the top and cannot be handled with any meekness.
Girl, you will have to seriously fierce that outfit to make it work but you know you can.
The dwarven irish man, can leap bounds if tossed. A very ugly monster that is from ireland with a ginger beard, what a mess. Appeared in all Lord of the Rings films.
"I am FIERCE! I must defend helms deep alongside my elven friend Legolas" A quote from Gimli aka Fierce.