To waste time; to dally.
To attempt to attract the notice, admiration, or love of; to treat with a show of tenderness or regard, with a view to deceive and disappoint; to lead on.
To act as a flirt or coquet.
A flirtatious female; a coquette.
To piss away: to waste or squander time, money, etc.
He piddled away three hours at the bus station waiting for Gabe to show up.