A demand to be a man and to stop acting craven or cowardly. A derivation of man up (which in itself is a derivation of cowboy up), although more insulting. While man up can be used as encouragement to do something, sack up is almost always a challenge to cease doing something that should be beneath you
Weed Marijuana. The term Boo Boo Shmack can be broken down into the three words that make it. Boo, Boo Boo, or just Shmack. The "Sh" must really be pronunciation as to not be confused with smack (an unrelated term)
1) Yo mang pass that boo.
2)Ready to Shmack out?
3)Boo boo time ma'fka!
4)Holy cow mang, this is some extremely potent Boo Boo Shmack