3. gull, dupe, slang, befool, cod, fool, put on, take in, put one over, put one across -- (fool or hoax; "The immigrant was duped because he trusted everyone"; "You can't fool me!")
4. horse around, arse around, fool around, fool -- (indulge in horseplay; "Enough horsing around--let's get back to work!"; "The bored children were fooling about")