A classy-ass way to say that you're super drunk, fucked up, wasted, shitfaced, or hammered. It is pronounced heh-mair-d (French pronunciation)
Dude1: holy shit it's only seven o'clock and you're already drunk
Dude2: nah man I'm just a bit Hamàred.
Dude1: oh ok that's cool then. And quite classy, I must say.