Infinite throw trap
Donkey Kong's Infinite Throw Trap (or ITT) is a technique in which Donkey Kong grabs the opponent repeatedly without throwing the grabbed opponent. This technique is only possible in the original Super Smash Bros.
Technical Details
After grabbing the opponent, Donkey Kong can choose to deal damage (about 6%) to him/her by either tapping forward, R, or A. This causes Donkey Kong to piggyback the opponent. During this time, Donkey Kong can walk around with or throw the opponent until he/she struggles free via button mashing (if the opponent doesn't button mash, he/she will be latched on indefinitely). Once the opponent struggles free, if Donkey Kong is standing still, he can grab again almost immediately. The opponent has a few frames in which to escape or counter. The pattern repeats as follows: Donkey Kong grabs the opponent, he latches on to it dealing some damage, the opponent struggles free, Donkey Kong grabs again, and so on.
Controversy
The ITT is sometimes banned in competitive play because it leads to stalling.
Once the ITT is started, it is almost impossible to escape. The fact that Donkey Kong has the longest horizontal grab range (excluding Samus and Link) and widest vertical grab range (which allows Donkey Kong to grab short hopping opponents) adds to this problem.
But most importantly, many consider the best counter strategy to be refusing to escape the grab. If the grabbed character doesn't button mash, he/she will stay latched on until the Donkey Kong throws. Because the damage is inflicted when Donkey Kong grabs, when faced by the ITT, many opponents will refuse to escape, leading to a stalemate in which the Donkey Kong, intending to infinite, waits for the opponent to button mash, and the grabbed character, not wanting to deal with escaping the infinite, waits for the Donkey Kong to throw.
However, it is important to note that the technique is escapable. Formerly it was often banned, but recent tournaments appear to ignore the tactic altogether. But since most high level Smashers can escape the infinite, it usually doesn't make a difference.
