hi i dont know if u still want to know the meaning of these words, but i think i know the meaning on some of these. im not jamaican man,

but i have carribean friends and always with these people for about 6 years now so i identify some of the words
Scalatchi -??
da - THE
fi - FOR
pon - ??
nuttin - NOTHING
par - PARTY
cah - CANNOT OR THEY PRONOUNCE IT AS "KYANT"
jah - GOD
pet it
free up - "BREAK FREE"
unu - ON YOU
caw
dis - THIS
peezy
weh - WE
seh - SEE
fren - FRIEND
dutty - DUTY
vibe - FEEL
I HOPE IM RIGHT WITH SOME OF THIS. BUT IF SOMEBODY KNOWS THE PERFECT MEANING PLS FEEL FREE TO REPLY. JUST TRYING TO HELP.