Try putting your meter on 12" of Nichrome wire
We are digressing a bit but I've been in electronics for over 40 years. Nevertheless I looked up nichrome wire, and the resistance table
here suggests that you would need an awfully thin nichrome wire to give you the 2-4 Mohm mentioned by Wigglyamp. In fact it would be microscopic.
Anyway, a google on static wicks finds e.g.
this which says
Static dischargers are fabricated with a wick of wire or a conductive element on one end, which provides a continuous low resistance discharge path between the aircraft and the air.
OTOH
this says they are made of carbon fibre strands.
This also does not mention any resistive materials in the wick construction.