a pus like green substance that is excreeted during labor.
The baby's momma was straining during labor and her panties got all soaked in mung butter!
by David February 28, 2005
1 more definition
Simply take a good batch of mung, which you can find in any dead bitch, and spread it on some toast and enjoy.
Dame that mung butter was fucking great!
by chad September 03, 2004