Originated from Metal Gear Solid 2 Sons Of Liberty. What is different is that they changed the first two letters in order to confuse the player. Sometimes used on messageboards to show defeat or total pwnage.
The act of being hypnotized by seeing a nice set of tits. When someone is tit-matized he forgets about everything else that might be going on around him. This is a fairly common occurrence that happens daily with most men and lesbians.
Every time I see Dolly Partons nice big breasts I get Tit-matized, and can only imagine what all that sweater meat must taste like.