When a girl (even though she may be FAIRLY sane and normal) goes a bit nuts or Man Mental about a guy. usually drunk, usually on a night out.
Yeah, i always thought Nik was pretty normal, but don't you remember that time she was pissed and went a bit Mantal because Matt was talking to Chelc?
by Nikemp February 05, 2009
Can you define these popular missing words?