- Blacken
- Blotting-paper stain
- Drinks a little printer fluid
- Fluid found in pen, or penknife on reflection
- If a pen is a weapon, the ammo is in painkillers
- Octopus defence used in Helsinki
- Octopus liquid
- Pen fluid pots
- Writing-fluid pots
- A cephalopod, belonging to the genus Loligo and related
genera. There are many species. They have a sack of inklike fluid which
they discharge from the siphon tube, when pursued or alarmed, in order
to confuse their enemies. Their shell is a thin horny plate, within the
flesh of the back, shaped very much like a quill pen. In America they
are called squids. See Squid.