What does sb mean on Snapchat?

[daisyfrannk]

What does this abbreviation mean on Snapchat??

 

[jainnaman561]

When one user sends a snap back to their friends is known as SB or Snap Back. This would also rely on another person to maintain the snap streak.

 

[jessicabell]

On Snapchat, "SB" stands for "Snap Back." Users apply "SB" to ask for visual responses through snaps which helps keep both communication and streak relationships intact between Snapchat friends.