look up any word, like bukkake:
 
1.
A person (usually a male) who lacks ability, confidence and courage.
Man, that putty butt dude can't do anything right!
by The Knowledge Doctor April 29, 2008
 
2.
an awesome and awe inspiring derriere that strangely has the consistency similar to silly putty. Usually of a redheaded vixen.
Her putty butt was legendary
by cu23 December 13, 2010