A term used by southern gentlemen to describe the action they do when sniffing through a diamond. Usually followed up by forming a diamond shape with your fingers and acting out the sniff.
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!