gratter

/ɡʁate/
1.
verbInf1st

to scratch (an itch)

to scrape or rub a surface (including scratching off a card)

Arrête de te gratter, tu vas te faire mal.

Stop scratching yourself, you'll hurt yourself.

2.
verbInf1st

to scrounge or cadge (colloquial); to get something for free or by asking

to eke out or save a small amount (time, money)—colloquial

Il essaie toujours de gratter une clope à tout le monde.

He's always trying to scrounge a cigarette from everyone.

3.
verbInf1st

to strum or pick (an instrument), colloquial

Le dimanche, il aime gratter de la guitare sur le balcon.

On Sundays he likes to strum the guitar on the balcony.