No prob, i'll explain
Wide Arms: Push ups with your arms wider than shoulder width apart
Diamonds: Push ups with your hands together(thumb to thumb, and index finger to index finger) to form a diamond.
Clap push ups: An explosive standard pushup, off of the ground, you clap your hands before you set down.
Squats:bending at the knees and hips, till your quad is parralel to the floor, then back up
Pistols: One legged squat, hold these for a little later
Lunges: Stands with feet shoulder-width apart, step forward as far as you can. Go down till your back knee touches the ground(gently). Then return to the starting position. If non weighted and i have a little room, i prefer the "lunge walk" which is simply instead of stepping back to where you were, you instead step forward with your other leg.
Mountain Climbers: Get in the pushup position, bring one leg forward, bringing the knee toward your chest, as you begin, you spring of the ground a little and switch the position of you legs. You shouldn't be resting on this, as soon as you land, just do it again, back & forward.
V-ups: Lie on the floor, legs straight(6in off the ground) arms close by sides. Bring your shoulders and head a few inches off the ground. The raise your legs up and reach out with your arms to attempt to touch your toes.
Crunches: Feet flat on the floor, hands behind your head, curl your torso up off of the floor, with this one make sure you are curling or "crunching" your torso, and not just doing a situp, or pushing your head down into your chest.
Supermans:This exercise works your back. Lie face down on the floor with your arm stretched out straight overhead. Flex your mid to lower back to bring your legs, arms, and head all several inches off the ground, hold it for a few seconds.
Situps: Lie down on the floor face up with you knees at a 90 degree, sit up without moving your knees. I prefer to have my hands interlaced behind my head on this one.
Supine bicycle: Lie on your back, hands interlaced behind your head, raise one leg to your chest, one should be down lower, but not completely straightened. As you begin the exercise, bring your torso up off the ground, and move your legs as if you were riding a bicycle(they should be switching places back and forward in a smooth circular motion).
I hope this helps and was clear, you probably already knew most of them, but by different terms. If this didn't make any sense, post back and i'll try to find you some links with pictures.
"Remember when you are resting, someone somewhere is training, and when you meet him, he will win."