To those of the Filipino-persuasion, JunJun is another version of Junior.
My brother was named after my dad, so we call him JunJun.
the privates of females, but only to be used in daily conversations by the lower class such as those who are too indignified to use the word 'vagina' withot laughing their asses off. used by young mothers when tackling the delicate topic of "mommy where do kids come from?" but never reliable for accurate anatomical information, of course.
"ma where do kids come from?"
"well, hun, see that kitty? the male kitty's thingey goes into the female kitty's junjun and poof there goes the baby."