v.
   ▸informal read the postings on an online forum without contributing any messages.
- be or remain hidden so as to wait in ambush.
 - be present in a latent or barely discernible state.
 
n.
 Austral./NZ informal a dodge or scheme.
 
  Derivative
  
  Etymology
  ME: perh. from lour + the frequentative suffix -k (as in talk).