Definition of dabber:
(n) :
A thing or person that dabs.
(n) :
Alternative form of dauber (“marker pen used for bingo cards”). [(derogatory) One who, or that which, daubs; especially, a coarse, unskillful painter.]
(n) :
Alternative form of dauber (“cushioned pad used for applying ink”). [(derogatory) One who, or that which, daubs; especially, a coarse, unskillful painter.]