The annoying little black flecks of soot that appear when one burns a piece of plastic--or any annoying little fleck in your coffee, tea, or whatever. Example: I set my model car on fire, and nearly choked on all the freenies. OR That's the last time I go to Starbucks. My latte was swimming with freenies.
FREENIE
Meaning of FREENIE in English
Slang English vocab. Английский сленговый словарь. 2012