A description of someone who is not cool to be around;annoying
"Yall wanna go to this party?"
"No"
"Yall bein' boosie!"
refers to something wack; out of the ordinary; weak.
" man u hella boosie for that"
"man my girlfriend actin hella boosie right now"
"man the police is hella boosie"
Nickname for a younger sibling; pioneered by toddlers, consequently the meaning and origin are unknown
tits, bosoms, breasts, boobies etc
"those boosies are lovely"
"he had a right pair of man-boosies"