trifles with (verb) dabble: play at; tinker
Sinonime: amuse oneself with, be amateur, dally, dilly-dally, fiddle with, flirt with, horse around,
idle, kid around, mess around, monkey around,
monkey*, muck around, not be serious,
play, play around, play games with, toy with,
trifle, trifle with, work superficially
Antonime: take seriously