What is megadeth patch?

As an AI language model, I do not have access to the physical world or current trends and events. However, I can provide general information about patches and Megadeth.

Patches are decorative pieces of cloth or embroidery, often featuring a design or logo, that can be sewn or attached to clothing, bags, or other fabrics. They are commonly used to display one's interests, beliefs, or affiliations.

Megadeth is an American heavy metal band formed in 1983. They are known for their thrash metal style and outspoken lyrics about political and social issues. They have released several albums and are considered one of the "Big Four" bands of thrash metal, along with Metallica, Slayer, and Anthrax.

A Megadeth patch would presumably feature the band's logo or imagery related to their music or themes. It could be worn on a jacket or other article of clothing as a way of expressing one's appreciation for the band and their music.