a pen that vibrates
generally advertises phrases such as:
"discover your world"
or more commonly known
BarbAnn: guess what im doing right now with my pen
Mo De Marfo: oh dear. pleasing your toe?
BarbAnn: OMFG YOU ARE CRAZILY IN TUNE WITH MY BEING! BECAUSE THATS WHAT IM DOING!
Bingoboo: You and me baby ain't nothing but mammals so let's do it like they do on the discovery channel.
Checincugra: -looks at discovery channel vibrating pen- So thats what they mean..