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1. Characterized by a feeling of irresponsibility
   "a broken back is nothing to be casual about; it is no fooling matter";
   - casual

1. Make a fool or dupe of
   - gull, befool [archaic]
    
2. Spend frivolously and unwisely
   - fritter, frivol away, dissipate, shoot, fritter away, fool away
    
3. Fool or hoax
   "You can't fool me!";
   - gull, dupe, slang, befool [archaic], cod, put on, take in, put one over, put one across
    
4. Indulge in horseplay
   "The bored children were fooling about"; "Enough fooling around--let's get back to work!";
   - horse around, arse around [Brit, Cdn], fool around, arse about [Brit]

See also: light

Type of: betray, consume, cozen, deceive, delude, jest, joke, lead astray, lead on, play, squander, ware [archaic], waste

Encyclopedia: Fool, Fool, Fool