A signature block at the end of emails or posts.

Un bloque de firma al final de correos o publicaciones.

To playfully tease or taunt; to signify in boastful talk.

Burlarse amistosamente o tomar el pelo; fanfarronear verbalmente.

Initialism for special interest group, an organized topic-focused group.

Sigla de grupo de interés especial, un colectivo temático.