Budder is a kind of cannabis wax. However within the cannabis wax category you also have; honeycomb and crumble, not to clarify a few others. Confused yet? The trick to understanding what budder is by understanding the consistency and the texture of budder. Imagine that budder sits in the middle of the other two waxes listed.
The consistency of honeycomb is light and airy. It almost looks like it has been whipped and filled with air, breaking apart very easily.
Crumble does exactly what the name suggests; crumble. This makes it relatively easy to use as it can be broken apart by hand.
Budder is not quite as light and brittle as the honeycomb but neither does it break apart into chunks like the crumble. You would need a dabber to divide a portion to smoke properly rather than being able to break it by hand. This is largely due to its slightly waxy texture.
One thing that all three forms of cannabis wax share is the same broad production process, with all three developed using butane or CO₂ extraction.