pillionist rare.
(ˈpɪljənɪst)
[f. pillion n.1 + -ist.]
One who rides on the pillion of a motor cycle.
The more usual term is pillion rider.
| 1923 Motor Cyclist 26 Sept. 643/1 As a confirmed pillionist I do not add my voice to those who are clamouring for legal abolition of this form of passenger riding. |