ObamaMad
You're like a volcano, all the pressure is building up, but you're not going to erupt. You're mad, but you're just going to let it all slide like a bad haircut.
'I'm so mad about everything, but I'm just going to sit here and be quiet.'
'I'm upset about the whole thing, but I'm not doing anything about it.'
'I'm mad enough to scream, but I'm just going to let it all go.'