look up any word, like twoosh:
 
1.
chilling out; relaxing (usually with others)
What are you up to this arvo?" "Not much mate, just muzzin"
by gowz June 14, 2010
 
2.
muzzin, slang for womb, preferably female, human
whoah, that muzzin dilated 15 times during the pregnancy!
by sheezzzz December 08, 2007