Redness on the face of an annoyed person. The color usually emanates from under a person's sideburns, hence "anger" burns.
Kaleo: Hey Tim, what did you get on the math test?
Tim: I DID FINE!!!!!!
Kaleo: Are you sure? Because I can see your anger burns.
Tim: I DID FINE!!!!!!
Kaleo: Are you sure? Because I can see your anger burns.
by MoneyCow June 16, 2011