To grab or bat quickly.
The cat swiped at the shoelace.
To strike with a strong blow in a sweeping motion.
To scan or register by sliding (a swipecard etc.) through a reader.
He swiped his card at the door.
To interact with a touch screen by drawing one's finger rapidly across it.
Swipe left to hide the toolbar.
To draw (one's finger) rapidly across a touch screen.
To steal or snatch.
Hey! Who swiped my lunch?