In Halo, when one player possesses both a Sniper Rifle and a Shotgun. This is particularly good because the Sniper Rifle is one of the best long range weapons, while the Shotgun is arguably the best short-range weapon and definitely the best short-range gun.
And Tim doth declared, "Don't worry guys. I got shotty snipes. It will be alright." And it was so.
the bravest man Harry Potter ever knew. The man who love Lily Evans and introduced her to magic. The man who was a spy for Dumbledore and killed him on his orders. The man who was head of slythering. The man who was potions master. The ultimate Slytherin, with the ability to be a sarcastic bastard to harry all the while saving the kid's life over and freaking over.
Nickname for any sniper rifle from the Gears of War series, Or the Halo series. The name comes from the first Gears of War where the sniper rifle somewhat resembled a windshield wiper.
Hence the name Sniper Wiper. Can also be implied when someone that is god like with the sniper picks it up and commences to "wipe" out the whole enemy team.