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1.
masturbating through the pocket. usualy people will use silk pockets. also my be just playing with himself.
that boy over there is gona mitch off soon.
by alx McCarter May 03, 2005
 
2.
When you see a guy with his hand in his pocket jerking violently with a spacey look in his eyes, he is most likely masturbating through his pocket. Other wise known as "mitching off"
The man was so bored while at the business meeting, he proceeded to mitch off under the table.
by Fabian_6969 April 17, 2007