Delaware Smash

Delaware Smash (デラウェアスマッシュ) is a move performed by Izuku Midoriya using the One For All Quirk.

Description
Izuku was first seen using it to defeat a group of villains on the water, during the Unforeseen Simulation Joint Arc. Izuku powers up his finger to create a powerful shock wave with a flick that has enough force to break large chunks of ice. He later uses it in his fight against Shoto Todoroki during the U.A. Sports Festival Arc.

Variations

 * 1,000,000% Delaware Detroit Smash (1000000 パーセント デラウェアデトロイトスマッシュ): Izuku uses One For All 100% that is also boosted by his adrenaline and delivers a Delaware Smash followed by a Detroit Smash with incredible force that blasts the opponent away, hence the Delaware Detroit Smash; This 100% adrenaline-enhanced move is powerful enough to overpower Muscular's Muscle Augment and incapacitate him. In the manga, however, Izuku is not seen to have clenched his fist neither before nor after delivering the blow - unlike in the anime, thus resembling more of a Delaware Smash enhanced smack.
 * Delaware Smash Air Force (デラウェアスマッシュエアフォース): Izuku uses his upgraded gloves Mei Hatsume to direct a blast of compressed air against his foe, possessing enough concussive force to stun Gentle while he was in mid-air, giving Izuku an opening to catch up to him. By using all five of his fingers, he can launch up to five Delaware Smashes simultaneously.