Galick Gun is one of Vegeta's signature attacks, an energy wave similar to Kamehameha. In keeping with the Saiyan pun on vegetables, the attack is named after the vegetable "garlic" ("ga-rikku" is the Japanese way of saying "garlic"). To utilize it, Vegeta curls his fingers and places both his hands together at chest level facing the same direction (so that the palm of one hand is on the back of the other). Then, once enough ki is gathered, he thrusts both hands forward to fire a powerful blast of energy. The result is a powerful, fuchsia-colored energy beam that emanates from his hands and body. It is capable of destroying large planets if enough power is put into it. Vegeta first used this move against Goku in their first fight during the Saiyan Saga. When Goku countered the Galick Gun with a Kaio-ken x3 Kamehameha, Vegeta noted that the two attacks are evenly matched. Eventually, Goku's Kamehameha outmatched it by using a quadruple Kaio-ken.
Much later, Semi-Perfect-Cell used this attack against Vegeta in his Ascended Super Saiyan form, to no effect.
During Vegito's fight against Super Buu after he absorbed Gohan, Buu used one of Gotenks' attacks, the Super Ghost Kamikaze Attack, with the ghosts placing their hands over their heads as if they were preparing Masenko, but instead saying "Galick Gun" (a mistake in the FUNimation Dub).
In Dragon Ball GT, Super Saiyan Vegeta used a blue colored version of the Galick Gun during his battle with Baby Gohan.