What is the meaning of Klick?

A kilometer.

Kilometres per hour.

Alternative spelling of click

singular imperative of klicken

first-person singular present of klicken

a dollop, a knob, a dab (small mass of some sticky substance)

a clique (closed group of people)

a click (brief, sharp sound)

a click (act or instance of pressing a mouse button)

Source: wiktionary.org