From The Oxford English Dictionary:
labrish, v.
. . . .
To gossip idly; to chat; to chatter.
. . . .
1935 Daily Gleaner (Kingston, Jamaica) 13 Mar. 17/6 Gerardo Leon..sang a Jamaica Mento composed by himself entitled ‘Ooman wa mek yu labrish so’.
Link to the rest at The Oxford English Dictionary