Bumbread 

A bread is a bum.

There was a sign that said bumbread.

Bumbread by QuackoYT August 12, 2022

bum bread 

the act of shitting between 2 pieces of bread to create a sandwhich.

crocker: hey guys im back with a sandwich
me: you have most probably shat in that
ash: yeah he did he's eating bum bread.

bum bread by fleat101 July 11, 2011

bunbread 

Bread that is used for burgers and burgers only; much different than whitebread/wheat bread/etc.

Whoa man what kind of bunbread do you use?!

bunbread by eldnahmynoduesp June 18, 2016