What the hell is a "sticky" ?

[redneck E]

I am new and keep seeing this......

 

[DBloke]

A sticky comes from a bit of shrubbery

Or a internet sticky is something that is always stuck at the top of a internet message board

 

[Napalmbrain]

This thread shouldn't really go in this section (use Site Feedback for questions about the forum), but since the question was answered I'll just close it.