2. She's been flagging for weeks.
3. He's a flagger, he said he was going to bed.
The fellestrum or 'Flaggers' provide a popular pastime known as 'flagger diving', which involves running at speed and jumping headlong into a pile of 'flaggers' (a vast expanse of giant reids). Team sport, usually to involve the rescue of the 'Diver' by rest of team as he/she lies upside down suspended/stuck/lost within giant reid mass. Popular along the bay of waterville, Co. Kerry, Ireland, south.
"Alright michael, are ye comming flagger diving with the lads later?"
"What a dive! them flaggers are in smitherines!"
"Sorry Mrs Murphy, we lost kate in the flaggers again.."
Practical example: Sarah Jessica Parker