Psst! Guard your lugwrench!
That reference went straight over my head
Part of a (sadly defunct) gentle hazing ritual we used to greet newcomers with - one of our regulars made a habit out of greeting newbies with a hearty "Greetings!
*melts your lugwrench*", a reference to a scene from 80s SF movie
Starman.
Over time, other regular members took to leaving warnings with their welcoming posts ("Hi there new person!
*psssst - watch your lugwrench*), which usually served to immediately summon the lug wrench-melder. It became sort of a two-bit comedy routine cum hazing ritual, and part of the unspoken rules was that plaintive inquiries about what the hell the business with the lug wrenches was all about must be either ignored, or answered with equally cryptic 'explanations'.
Sadly, our resident melder of implements suffered a serious impairment of his vision recently, and is currently unable to partake in community life.