Pum pum turn up is a Jamaican term for "Pussy turned up"
Meaning the female sexual organ has been stimulated and is 'turned on'

Or can mean her sexual organ is sweet or feels good
Eg. "Da gal dey pum pum turn up"

or

"E pum pum turn rite up, she hah no stress fuh get a man"
by SmokezeWeedeveryday March 26, 2014
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