Toss Back

Toss Back is a Tier 3 perk in Call of Duty: World at War multiplayer that gives a player the ability to reset the fuse of a thrown grenade to three seconds, regardless of how long the grenade was cooked. The moment a player with the Toss Back perk picks up a grenade, the grenade timer is reset to three seconds. This perk is unlocked at level 6.

Tactics
This perk can be used well to counter grenades, specifically cooked-off grenades. It is also useful in Headquarters and War for players who are capturing the flag or HQ and don't want to be killed by incoming grenades.

This perk is vital in completing challenges which involve throwing back grenades. Keep in mind to pick up the grenade as it hits the ground, as some players, particularly experienced players, will cook the grenade to nearly the maximum time limit so as to make it explode as soon as it reaches you or while you're rushing to go pick it up.

This perk may seem underused at times but is a great perk if used correctly. When in maps such as Makin or Makin Day, there may be a large building or vantage point used for sniping. Using Bouncing Betties on the entrances is useful, but when other players learn of your presence there they will attempt to throw a grenade into the building you are in in an attempt to flush you out. With this perk you would be able to reset the fuse and throw it away or at another player, which would leave you alive for the encounter with the original thrower.

Tips
Pair up with the perk Flak Jacket when playing War, because when a grenade comes when you're capturing a flag and you can't pick it up in time, it is less likely to kill you.

Trivia

 * Grenades in Call of Duty: World at War have five-second fuses, while in reality some of the grenades would have three-second fuses. Thus, the Toss Back perk restores the real fuze time to grenades.
 * It is possible to play "Wall Ball" with this perk and grenades by throwing the grenades off a wall then throwing them back.
 * This perk can also be used to play Grenade Tennis, which is done like normal tennis but instead the players throw the grenade at each other.