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2 definitions by Cannot

 
1.
A squatting position when one has both arms stretched around the back of the thighs, thumbs facing the person performing the S-D-B shasty.
The boys saw a great looking girl on the beach, he quickly reached down and performed a public Spanish double-backhander shasty.
by Cannot June 19, 2008
5 2
 
2.
the act of taking a shit and a masty (masturbation) at the same time.
Also see Spanish double-backhander shasty
The boy slipped off into the corner of the club for a sleazy shasty.
by Cannot June 17, 2008
11 16