Touchstone phrase for situation when one person in a group suddenly notices something that the group has been focused on all along.
Origin: During a long street discussion of a massive fire in downtown Boston in the 1960s, another bystander suddenly said "Hey, look at that purple smoke!"
The group broke up laughing and repeating "purple smoke!". As isolated as the incident may have seemed, I have encountered the same phrase and meaning more than once years later as far away as California.
a combination of the two words hummingbird, and purple
while smoking up some purple, a girl, or as I'd like to call her, a hummingbird blows you. After you cum all over the hoe's face, you put out the rest of what you're smoking on her forehead and you kick her sorry ass to the curb.