(Shortened from the adverb)- Directly aloof or passive-aggressiveyoung adult (often of another social sphere or class) towards another passive or subversive young adult through illusory actions or words; Seemingly meant to help, but usually is rude and abrupt, often confusing the other person into a vacuum of blankness
"Girl, that comment was F'n intravenous when I was just tryina finish my HW…wth is ^ ?!" or "Vickie was pretty intravenous when she thought she was being helpful organizing my office space when I was busy with work, WTH?", or "I don't really know what with she meant by that intravenous comment"…
This phrase is never meant to be taken literally. No-one really injects coffee directly into their blood stream. Caffeine is the main ingredient of coffee, and gives us a feeling of satisfaction. It is simply a joking expression which refers to an intense love, or even addiction, to coffee.