fool around

fool· a·round

fool around

v. i.

imp. & p. p. Fooled around; p. pr. & vb. n. Fooling around

  1. To waste time in idle pursuits; to fool{2}.
  2. To flirt or philander.
  3. To be sexually promiscuous; to engage in sexual intercourse with more than one partner; especially, to engage in adultery; as, to fool around with another woman.