Learn English idioms with meanings and examples

🌎Region: International 📊Difficulty Level:intermediate

fool around

To waste time doing unimportant things; to joke/behave playfully instead of being serious. Sometimes also means to engage in casual sexual activity.

From the verb phrase “to fool” (act silly) plus “around” (in various places/without purpose). By the mid-20th century it also developed a sexual sense (“fool around with someone”).

Informal. Usually means “mess around/waste time,” but with “with + person” it can imply sexual activity or cheating—be careful with context.

  • Stop fooling around and finish your homework.
  • We fooled around at the mall all afternoon and forgot the time.
  • If you fool around with the wiring, you could get shocked.
  • They started fooling around on set, and the director had to call for quiet.
  • He got fired for fooling around at work instead of doing his job.

Intransitive: “Stop fooling around.” Also “fool around with + person/thing.” Tense: “fooled around,” “fooling around.” Meaning shifts with “with + person” (often sexual).

  • mess around
  • goof off
  • dawdle
  • waste time
  • horse around
  • focus
  • get to work
  • take something seriously
  • behave