Its a word from the TAE TAE language,who is a member of the world renowned the bestboy band, BTS.
This was first used during the visit of the boyband to the Niagara falls.
* V's Niagara pho pho is so cute*
* I wish I was the Niagara pho pho that V was talking about.*
The condition that occurs when a woman belly extends past her flapjack boobs. The boobs then appear to be cascading over the belly likewater over Niagara Falls.
Damn, Did you see that bitch's Niagara tittiesspill all over the place.