Think Wank
A wank achieved with no aid other than your own memory or imagination.
A power cut is no problem, so long as you have the power of the Think Wank.
think tank wank
when you bust a nut only with your imagination or replaying memories of events in your head
commonly performed when internet access is poor
commonly performed when internet access is poor
my phone ran out of charge and i lost my charger so i had to have a think tank wank instead.