Blood-Nap

The Blood-Nap is a weapon in the Fallout: New Vegas add-on Lonesome Road.

Characteristics
Blood-Nap is a unique variant of the Bowie knife that does bonus critical damage, gives a bonus critical chance, and adds +10 to Sneak. This weapon qualifies as an improved holdout weapon.

Locations
Found in The Courier's Mile. This weapon becomes accessible only after first completing The Launch. It is found sticking out of a street lamp just to your left as you enter the area.

Behind the scenes
Blood-Nap may be a reference to Set from Fallout 1, who was also referenced in Fallout 2.

It may be a reference to Sting, the one handed short-sword of Frodo. Which glows blue when orcs are near, similar to the way that Blood-Nap glows.