toothing

noun6

1. •
   Tooth-like projections from the perforated edges of a stamp after separation along from its sheet.
2. •
   Bricks alternately projecting at the end of a wall, in order to be bonded into a continuation of it when the remainder is carried up.
3. •
   A configuration of a leaf margin with teeth, such as of a dentate, serrate, or crenate leaf.
4. •
   The suppose use of Bluetooth-enabled mobile phones or PDAs to arrange random sexual encounters (a hoax intended to highlight journalists' gullibility and poor fact-checking if they reported it as real).

   • Bluetooth has lately been associated with the practice of "toothing" or sending messages via Bluetooth in public spaces as attempts to find (sexual) partners. — 2011
5. •
   Teething (growing of teeth).
6. •
   The act or process of indenting or furnishing with teeth.