When you hear two distinctive sounds during a fart as if the sound was coming from two separate pathways to the outer atmosphere. The hand peace sign in reverse face(inner thumb facing chest) and sideways (fingers pointed horizontally to the side of the body) can be used to represent a "duet". (see "symphony")
And dying in yo' bed many years from now, would ya be willing ta trade all da days from dis here day ta dat fo' one chance, just one chance, ta come back here as young men an' tell our enemies dat dey may take our lives but dey will never take our freedom ... YUB NUB!