To accuse someone of falsetruths.
Street version of Bullshit.
Can also be abbriviated to "Bo' shiz" , should the time be appropiate.
*while playing card game 'cheat' "
"Bo' Shizze Mandy! I saw that!"
or,
"Oh shut up colin, that's a load a bo' shizz if I ever heard one!"
1.One who is sure of dick
2.A flamer
3.1/2 cm sized penis
4.Describes something
that guy is a shizzy bo bizzy