When a bitch grabs a lace/string that's used for consuming heroin or when getting blood drawn, and proceeds to wrap it around your bicep so a vein will pop out. She then grabs a sharp object and cuts it open or she grabs something pointy (a straightened paperclip for example) and punctures the vein.
Fredward: You know thatstupid bitch I met in the bar last night? Nigel: Yeah what'd you do with her? Fredward: That busty bimbo gave me a blue vessel!
A Roach Vessel (shortened to RV) is the act of placing the last bit of the blunt into the bowl of your pipe or bong.
An alternative to Wu-Tanging, an RV is an effective way to avoid burning one's fingers, and to conserve resources.
Jose: "We're at the last bit... want me to light upanother one?"
Kent: "Hold on a minute, I'll make a roach vessel"
Sierra: "For sure, RV it"
"Taco's are brilliant. They aren't just a food. However, they're like a ship delivering goods to some far away land. Taco shells are a meat vessel that delivers ground beef, chicken, or steak right into your mouth!"