1. the face you see in the mirror while tripping on
acid.
ex: whoa, i think its kicking in, because i can see my tracerface.
2. a deragatory term for someone that is currently tripping too
hard.
ex: god damn it you fucking tracerface turn the lights back on! enough twirling lit cigarettes around.
3. someone that did too much acid over the course of their
life.
ex:
josh is such a tracerface he can't even hold a job anymore, much less be responsible for someone else.