fribbler

frib·ble

F0325100 (frĭb′əl)v. frib·bled, frib·bling, frib·bles v.tr. To waste (time, for example); fritter (something) away.v.intr. To waste time.n.1. A trifle; a frivolity.2. A frivolous person.
[Origin unknown.]
frib′bler n.