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4.
the act of jerking your dick off while defecating
When Timmy was done sherking he wasn't sure if he should pinch it off or blow his load on the floor.
by flyboy04950 December 21, 2009
 
1.
The act of sitting around (normally at work) wasting time and not doing the duties you have been assigned. also could be used as a to Sherk = to do nothing when you should be working.
Hey, you been busy today?
Dude, i was sherking big time!

Im gonna sherk all day today!
by Kookye June 05, 2007
 
2.
Masturbating in the shower.
Brian: What took you so long, were you sherking again?
by LionelFritzyJungle June 06, 2010
 
3.
- shitting and jerking off at the same time
Hey Baby - Last night I was sherking, shitting my pants while dreaming of fucking YOU.
by joe February 18, 2005