The word you yell when you are about to let loose a serious case of projectile diarrhea. Usually into the toilet or into the back of the toilet bowl (sometimes on the seat or completely out of the toilet as a whole).
Sometimes said like this: SHOT!... Guun!!!
(a quick "SHOT!" followed by a 1.5 second pause, then "Guun!!!")
When somebody sends a (usually generic) snapchat to multiple people at once, in the hopes it will spur popularity with them, begin convos with somebody, or keep a streak alive.
Also includes when somebody sends the same snapchat they've posted to their story to other peopledirectly.
Derives from "shotgun texts" & "shotgun messages"
I'm so tired of all these basic-ass thots sending me shotgun snaps that they put up on their story instead of having an actual conversation with me.
This is an expression related to the blueing of a gun - specifically a high-end shotgun. In the South especially, a finer shotgun would have a "blueing" or a "blue" of the steel that was accomplished by way of the quality of the steel and the effort of the person who owned the gun polishing it. "Shotgun shine" is a simplification/symbolism of this concept and a way of saying that a person has a killer instinct; however attractive they may be. It's not necessarily a positive expression, and surprising that in the nearly 25 years since Alabama 3 used it, and since the Sopranos used it in this manner exactly, that no one else has put it on Urban Dictionary.