by Kylebivens91 April 29, 2011
when a man calls 'dibs' on a woman, the undib is used to undo the dib when a better offer comes along or new information on said woman comes to light
"yo dude, you see that dime over there? i completely undib Kelly for her"
or
"hey man, you might want to undib that girl, bro. Turns out she's your first cousin"
or
"hey man, you might want to undib that girl, bro. Turns out she's your first cousin"
by Eschenbach and Puchley March 31, 2008