look up any word, like donkey punch:
 
3.
chicks fighting by pushing and a lil' pinching goin on
by bIg Hairee Schlong September 26, 2003
 
1.
Female equivalent of beating up. Not so violent and involves a lot of pushing and the occasional pinch. From the series "Confessions of Georgia Nicholson]".
Jes was duffing up on Ellen. Jes was winning.
by ʎppǝɹɟ ǝןqısıʌuı April 13, 2009
 
2.
duffing up is the female equivelant of beating up, or kicking ass. It's not so violent in a sense, and to a certain degree. It usually involves excessive screaming, clawing, pushing, and shit-talking.
ali is effing duffing up mandy, alis guna win, mandys so screwed.
by Ali Lansing July 15, 2006