Armlock - this is a submission where a person's arm is forced to move against the elbow joint.

Ankle lock - this is a submission where a person's ankle is forced to bend farther than the ankle is capable of bending. Typical injuries from this include broken ankle, and torn tendons and ligaments.

Choke - this is a submission where the arteries are blocked or the trachea is collapsed. This is usually done using a combination of the hands, forearms, and lapels of clothing.

Clinch - this is the technique of obtaining close contact with your opponent, without taking too many punches and kicks while attempting it. This is a very difficult move to master.

Closing the distance - this refers to one phase of the clinch where you eliminate the amount of space between you and your opponent without getting hit.

Cross Mount - this is also known as "cross side". This is where you are perpendicular to your opponent with your opponent on the bottom, and your chest on top of their chest. This is a very critical position because the match can change in the blink of an eye depending on who is better at maintaining or escaping this position.

Leglock - this is a submission where a person's leg is forced to move against the knee joint.

Guard - offensive and defensive position when your opponent is between your legs. Many professional Brazilian Jiu-Jitsu fighters claim this is the most important position in BJJ to master and learn.

"He's a tough guy" - most people in Brazilian Jiu-Jitsu claim this of everybody! Your grandmother "is a tough guy". This is the BJJ fighter's way of being modest. The basic premise is don't underestimate anyone.

Hooks In - people watching the match or fight commonly scream this at you. It means to get your feet on the inside of your opponent’s thighs once you take the rear/back mount.

Matte Leon - this is a classic chokehold from the rear mount.

Mount - offensive position where you are on top of your opponent with your legs on the sides of your opponent, tucked underneath their behind, or wrapped up in their legs (grapevines).

"My friend, my friend" - most people in Brazilian Jiu-Jitsu claim this of everyone as well. Everyone they meet is "their friend". This should not be taken literally either. The basic premise here is not to go looking for trouble.

"Punch his face" - this is common phrase refers to the act of the person in the mount punching the face of the person who he is mounting.

Rear mount - this is where you are facing your opponents back with your legs on the inside of your opponent’s leg. This is the position that most BJJ fighters try to obtain. The BJJ fighter has every advantage from here.

Reversal - this is where you are originally in the disadvantaged position, but through technique, is able to reverse the position to your advantage.

Shoulder lock - this is a submission where a person's shoulder is forced to rotate farther than the human shoulder is capable of rotating. Typical injuries include torn ligaments and tendons, as well as rotator cuff tears.

"You take" - this common phrase means that you perform the technique that presents itself. For example, "If the guy shows his neck for the choke...then I take."