Machine Gun: A machine gun attached to the arm with almost unlimited ammo.
Pirate Robot

Machine Gun Tsuki: When the opponent is has his/her back to a wall, this attack is done. The attacker’s arm moves rapidly, like a machine gun.
Tenshinhan

Mafuba : A powerful attack used to seal demon’s in the Denshi Jar. The attacker goes through a set of moves and shots out a spiral beam. If the beam connects, the attacker guides the demon into the Denshi Jar. If performed right, the user dies.
Kami, Master Roshi, Tenshinhan, Mutaito Sennin

Mafuba Gaeshi : The ability to deflect the Mafuba.
Piccolo

Magaru Kamehameha : Turn around Kamehameha. Kamehameha is shot out at the opponent and appears to miss them. It then comes around and hits them from behind.
Goku

Magic Barrier: A barrier of magic is formed around the user, but it can be broken.
Babidi

Magic Slime Hajyu: A magical slime that sticks to you, crushing you to death. But, it’s not the most powerful attack in the book.
Babidi

Magnum Sundae: I’ve never really seen it, but I’ve heard it. It’s one of Gotenks kooky little “attacks.”
Gotenks

Makkankosappo : The Special Beam Cannon for us Americans. A neat attack that Piccolo uses often. He raises his index and middle finger to his forehead, then points his hand out. Two beams are shot out. The first is straight, the second screws around the first. It took Piccolo 5 minutes to charge for it the first time, but later got so good he could do it right away.
Piccolo

Makousen: A blasts of magic, not ki.
Piccolo Daimao, Piccolo.

Masenkou : A pretty powerful attack of Gohan’s. Both hands are put together and raised above the head. Then are then shot outward, releasing the beam.
Gohan, Piccolo, Trunks in the movies.

Mini Gokou: Ah, um, a strange attack where the user creates mini Goku clones that do whatever Goku does.
Janenba

Mini Janenba: Another strange attack where the attacker makes mini Janenba clones.
Janenba

Mirai o Yochi Tsuru Mabaroshi no Ken: If the attacker hits the victim in the back of the neck just right, they can see the future for a second.
Tooro

Miracle Super Punch: Punch with special name.
Gotenks