A lipgloss-like substance, containing cinnamon and other extracts. When applied it results in a pleasant sesnsation described by some people as pleasant tingling and others as slight burning. Its purpose is to increase the bloodflow to the lips, which causes them to look fuller and redder.
V: "Dude, kissing someone with Lip Venom on would rock. Espescially if the guy wore Lip Venom, too."
C: "Er....I wear Lip Venom..."
V and C: *...blush*