It doesn't mean anything. Is an expression of joy or joy used mainly in Colombia and Venezuela linked with the music of cumbia and vallenato. Example: Uepa je, viva Colombia!
This is an expression that appears in the Latin music ( Salsa ) and transmits the good mood of the singer ( Lacking letter 41 spaces; to raise the enthusiasm of those who listen to them and denotes " 34 approval, it is a way of saying " I like! ".