I always associated the origin of the word hooker with the little hook = haakje at the end of a fishing line.

There is a color in artist paints called 'hookers green'.
LIU I found "Hooker's green is a dark green color created by mixing Prussian blue and Gamboge. Hooker's green takes its name from botanical artist William Hooker (1779 – 1832) who first created a special pigment for leaves.[12][13]" ( strange, no leaf is the same shade of green as the other and then there is the influence of light...)

As it is a rather agressive type of green I always associated this color with above mentioned hooker.