A trollcall is a specific unusual team tag usually inserted on pages that can be easily detected via search engines, e.g. TELL THE WIKITRUTH, Victory to the Red Faction, SOLLOG - boy are we asking for it!!! This only works for websites that anyone can edit, however, so social bookmarking software can be used as another way of issuing a trollcall.

A trollherd will usually have a few distinct such trollcall tags.

The universal trollcall is mention of "sysop vandalism", which is a phenomena that trolls observed and documented, and which most administrators simply deny can even exist.