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1. Lie in wait, lie in ambush, behave in a sneaky and secretive manner
   - skulk
    
2. Be about
   "The high school students like to lurk in the Central Square";
   - loiter, lounge, footle, lollygag [N. Amer], loaf, lallygag [N. Amer], hang around, mess about, tarry, linger, mill about, mill around, mooch [Brit]
    
3. Wait in hiding to attack
   - ambush, scupper, bushwhack [N. Amer], waylay, ambuscade [archaic], lie in wait
    
4. (internet) view an internet forum without contributing anything

Derived forms: lurking, lurked, lurks

Type of: be, conceal, hide, wait

Encyclopedia: Lurk