Definition of jetter:
(n) :
Any of a number of devices that eject a pressurized stream of liquid.
(n) :
(often science fiction) A vehicle or engine that works by jet propulsion.
(n) :
An animal, such as a squid or jellyfish, that moves by jet propulsion. (Often used to distinguish it from similar animals with a different method of locomotion.)
(n) :
One who drives or rides in a jet-propelled vehicle.
(n) :
A place where there is a natural spout or eruption, such as a geyser or jet of lava.
(n) :
(roller derby) A jammer (player who attempts to score points by making their way past other players) on the televised version of the game.