Tranking is the art of wanking on a train or tram. This is done in the toilet when one is extremely horny, however if the toilet is occupied by another tranker, masturbating in the carriage is also considered tranking. Masturbating in the carriage is only considered tranking if the toilet is occupied.
Guy 1- “Hey what you up to?”
Guy 2- “Just had the phattest trank my guy”
Guy 1- “Wanna come to France with me on the train?”
Guy 2- “Yes I want go tranking with you, French style”
someone that is alone in the world...useless and/or pathetic
Rob:ey fool, look at that kid talkin to himself.
TANK:man he aint nuttin but a trank