What is Schwanking?
1.
Wanking after taking a shit and due to arousal caused by the defecation.
Kasper: Dude, have you ever tried schwanking?
Me: What?
Kasper: Yeah, have you ever wanked after taking a shit? Its like so convenient cuz you've already got a hard on and your in the bathroom.
Me: Your turned on by shitting? Whats wrong with you!?
See
2.
The act of dropping a log whilst beating your penis
Hey Greg, i was schwanking last night!
Really loz?
Yeah i was pooing and masturbating all night long
See
3.
To take a shit and wank off at the same time! Schwanking!
Bored at work and you have a spare 10 mins, what do you do? Schwanking in the toilets is what you do!
See