What does Air sig mean ?

[IzunaUchiha2]

What does it mean ? And can u show me one

 

[Silico]

You must be registered for see images

You must be registered for see images

 

[The Tailless Tailed Beast]

a render of someone with swirls and other things without a background

 

[-Frost Knight-]

like my susanoo sig

 

[gordo1]

My top sig.