1. Indulge in horseplay
   - horse around, arse around [Brit, Cdn], fool, arse about [Brit] 
2. Commit adultery
   - play around

Derived forms: fooling around, fools around, fooled around

Type of: betray, cheat, cheat on, cuckold, jest, joke, play, wander

• private investigator
• private line
• private nuisance
• private parts
• private practice
• private property
• private road
• private school
• private security force
• private treaty
• private-enterprise
• privateer
• privateersman
• privately
• privately held corporation
• privateness
• privates
• privation
• privatisation
• privatise
• privative
• privatization
• privatize
• privet
• privet andromeda