1. Behave in a foolish, fun way; indulge in horseplay
   "Enough arsing about — let's get back to work!";
   - horse around [informal], arse around [Brit, Cdn, informal], fool around, fool, muck about [Brit, informal], kid around [informal], muck around [Brit, informal], screw around [informal]
    
2. Waste time by being idle or engaging in aimless activity
   "Her son is just arsing about around all day";
   - bum [informal], bum around [informal], bum about [informal], arse around [Brit, Cdn, informal], loaf [informal], waste one's time, lounge around, loll, loll around [informal], lounge about, slob [Brit, informal]

Derived forms: arsing about, arses about, arsed about

Type of: idle, jest, joke, laze, play, slug [informal]